Institution: Bangladesh Public Service Commission (BPSC) Exam: 18th BCS Question with Answer
Topic: Idioms & Phrases, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The word "equivocal" refers to something that is ambiguous, open to multiple interpretations, or unclear in meaning. In this context, it conveys the idea that a statement or situation lacks a definitive or straightforward understanding.

Among the options provided, "mistaken" (B) seems to imply a lack of clarity or correctness, aligning with the concept of equivocation in the sense that something mistaken does not present clear information or truth. However, it’s essential to note that "equivocal" does not mean outright wrong; it often suggests a deliberate vagueness or ambiguity.

The other options are less relevant: "universal" (A) suggests something that is applicable or relevant everywhere, which is directly opposite to "equivocal". "Quaint" (C) refers to something charmingly unusual or old-fashioned, which does not pertain to clarity or ambiguity. "Clear" (D) is also the opposite of equivocal, as it indicates straightforwardness and unambiguity.

Thus, while “mistaken” is not a perfect synonym and carries its own connotation of error, in the realm of ambiguity, it can resonate with the lack of clarity that "equivocal" embodies. Therefore, it could be accepted as the best, although imperfect, choice in this context.