Choose the grammatically correct sentence involving comparison:

Answer and explanation

Correct answer: D. The cognitive speed of human pilots in crisis is vastly superior to that of automated flight software.

  1. Step 1: The comparison is between 'speed' and 'speed', requiring the singular demonstrative pronoun 'that of'. Step 2. 'Superior' takes the preposition 'to', not 'than', and does not take 'more'. Answer: The cognitive speed of human pilots in crisis is vastly superior to that of automated flight software. Why not the others: The sentence 'The cognitive speed of human pilots in crisis is vastly superior to automated flight software' compares 'speed' directly to 'software' (faulty comparison).

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