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Question

Difficulty: EasySingle-Sentence Inferences

Read the following sentence from a historical analysis of architectural restoration:

"While early conservators frequently replaced degraded marble facades with contemporary synthetic compounds to prevent structural decay, these modern materials inevitably accelerated the deterioration of the underlying masonry by trapping moisture within the original stone walls."

Based on the excerpt above, which of the following can be inferred regarding the synthetic compounds used by early conservators?

  1. Their application had a unintended detrimental effect on the stone walls they were meant to safeguard.Answer
  2. B
    They were officially banned from use in historical preservation projects during the late twentieth century.
  3. C
    They were completely incapable of adhering to natural marble surfaces under any environmental conditions.
  4. D
    They successfully prevented all forms of structural decay without causing damage to the surrounding masonry.
  5. E
    They were condemned by rival school conservators as aesthetically inferior to natural stone.

Answer

The application of synthetic compounds had an unintended detrimental effect on the stone walls they were intended to protect.
The correct answer directly follows from the sentence's assertion that synthetic materials were used to prevent decay but 'inevitably accelerated the deterioration of the underlying masonry.' This proves that their use had a harmful effect on the very walls they were intended to protect.

Step-by-Step Solution

1
Analyze the target sentence structure and key logical relationships.
The sentence contrasts the intention of early conservators ('to prevent structural decay') with the actual outcome ('inevitably accelerated the deterioration of the underlying masonry').
Single-sentence inferences require identifying claims directly entailed by the sentence's grammatical and logical facts.
2
Evaluate the direct implication of the outcome clause.
Because the synthetic compounds trapped moisture and accelerated deterioration of the original masonry, their use directly caused harm to the structure.
This logical deduction matches the statement that the application caused unintended damage to the safeguard target.

Key Concept

Single-Sentence Inference
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Topics

Single-Sentence Inferences

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