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Difficulty: MediumEliminating Redundancy

Iceland utilizes geothermal energy to heat its homes and generate electricity. Because this energy is harnessed directly from underground volcanic systems, it currently provides a reliable source of power at the present time to the majority of the country's residents.

Which choice most effectively eliminates the redundancy in the underlined portion of the sentence?

  1. A
    NO CHANGE
  2. it provides a reliable source of powerAnswer
  3. C
    providing a reliable source of power
  4. D
    it provides a reliable source of power, this energy is clean

Answer

it provides a reliable source of power
The option 'it provides a reliable source of power' is correct because it successfully removes the redundant words 'currently' and 'at the present time' while keeping the subject and verb needed to establish an independent clause to follow the introductory dependent clause.

Step-by-Step Solution

1
Identify the redundancy in the underlined portion.
The words 'currently' and 'at the present time' both modify the verb by indicating the action is happening now, which is repetitive.
Redundancy must be eliminated to make the sentence concise.
2
Evaluate the choices for conciseness and grammatical correctness.
The option stating 'it provides a reliable source of power' eliminates the redundant phrase while keeping the necessary subject ('it') and verb ('provides') to form an independent clause.
The sentence begins with a dependent clause ('Because this energy is harnessed...'), so the underlined portion must act as an independent clause to avoid creating a fragment.

Key Concept

Eliminating Redundancy
Estimated Time:45s
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Topics

Eliminating Redundancy

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