All engineering students should learn mechanics [I], mathematics [II] and how to do computation [III/IV]. Which of the above underlined parts of the sentence is not appropriate?
Options:
(A) I
(B) II
(C) III
(D) IV
Official Answer Key:
D
Step-by-Step Solution & Explanation
The sentence lists three items that should be grammatically parallel nouns: "mechanics, mathematics, and ___". The third item, "how to do computation", breaks parallel structure (it's a clause, not a noun) — it should simply read "computation" to match "mechanics" and "mathematics". The faulty underlined part is "how to do computation" (part IV, per the given underlining scheme). Answer: (D).
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