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Difficulty: HardDistinguishing Inferences from Assumptions and Speculations

Under the 2025 Financial Technology Modernization Act, any proprietary trading firm operating automated execution algorithms in Market Region Z must maintain an immutable audit trail of all order routing decisions. During the third quarter of 2025, every trading firm operating in Market Region Z that experienced an algorithmic order routing failure was subjected to an immediate full-scale regulatory compliance audit. Furthermore, during that same quarter, no firm subjected to a full-scale regulatory compliance audit had maintained an immutable audit trail of all order routing decisions.

If the statements above are true, which of the following must also be true on the basis of them?

  1. During the third quarter of 2025, every trading firm in Market Region Z that experienced an algorithmic order routing failure failed to maintain an immutable audit trail of all order routing decisions.Answer
  2. B
    During the third quarter of 2025, any trading firm in Market Region Z that was subjected to a full-scale regulatory compliance audit must have experienced an algorithmic order routing failure.
  3. C
    Maintaining an immutable audit trail of order routing decisions is sufficient to prevent algorithmic order routing failures from occurring in Market Region Z.
  4. D
    Most trading firms operating in Market Region Z during the third quarter of 2025 failed to comply with the Financial Technology Modernization Act.
  5. E
    No trading firm in Market Region Z that maintained an immutable audit trail during the third quarter of 2025 experienced any regulatory scrutiny.

Answer

During the third quarter of 2025, every trading firm in Market Region Z that experienced an algorithmic order routing failure failed to maintain an immutable audit trail of all order routing decisions.
The correct answer is a direct, necessary deduction from the passage's two main facts. The stimulus establishes that every firm in Market Region Z experiencing a routing failure in Q3 2025 was audited, and that no audited firm in that quarter had maintained an immutable audit trail. Linking these two facts creates a solid chain of logic: any firm experiencing a routing failure in Q3 2025 necessarily fell into the group of audited firms, none of which had maintained an immutable audit trail.

Step-by-Step Solution

1
Identify and break down the explicit factual premises provided in the stimulus.
Premise 1: Routing Failure (Q3 2025) → Subjected to Full-Scale Regulatory Compliance Audit. Premise 2: Full-Scale Regulatory Compliance Audit (Q3 2025) → Did NOT Maintain Immutable Audit Trail.
Establishing formal conditional relationships allows for precise logical synthesis without relying on unstated assumptions.
2
Synthesize the conditional chain using the transitive property.
Routing Failure (Q3 2025) → Full-Scale Audit → Did NOT Maintain Immutable Audit Trail. Therefore, Routing Failure (Q3 2025) → Did NOT Maintain Immutable Audit Trail.
Combining Premise 1 and Premise 2 yields a necessary conclusion that must be true based solely on the provided facts.
3
Evaluate the answer choices to identify the option that strictly matches this deduction while eliminating assumptions and speculations.
The statement asserting that every firm with a routing failure failed to maintain an immutable audit trail strictly expresses this valid deduction.
Valid GMAT inferences must follow necessarily from the premises with 100% certainty.

Key Concept

Distinguishing Inferences from Assumptions and Speculations
Estimated Time:2m 0s
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Distinguishing Inferences from Assumptions and Speculations

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