In each question below, three sentences are given, each

Solution

Sentence 1 — Error in A: “Many number” is incorrect. “Number” is already a collective quantifier — it cannot be preceded by “many.” The correct expression is either “a large number” or simply “many books.” “Many number of” is a redundant and non-standard construction. Sentence 2 — Error in C: “More obsess” is incorrect. After “more,” an adjective is required for comparison. “Obsess” is a verb. The correct form is “more obsessed” (past participle used as adjective).  Sentence 3 — Error in D: The subject “Our high level of expectations…and a low sense of acceptance” is a compound plural subject joined by “and” — requiring the plural verb “trap.” However, tracing the sentence carefully, the entire compound subject can be read as a unified abstract concept, making “traps” defensible. The more precise error is that the compound subject — 'Our high level of expectations...and a low sense of acceptance of the actual state of affairs' — is joined by 'and,' making it a plural compound subject that requires the plural verb 'trap' rather than the singular 'traps’. Hence (c) is the correct answer.