Explanation
In this vocabulary item, Stick is the closest synonym of Adhere, so option B is correct. The word Adhere and the word Stick share the same central sense in the context tested by the question, although usage, tone and grammatical form should still be checked before substituting one for the other. A synonym is not required to be identical in every possible sentence; it must preserve the intended meaning in the relevant context. Here, replacing Adhere with Stick keeps the core idea intact without reversing the tone or changing the action, quality or state expressed by the target word. The alternatives Hopelessness, Perfect and Noisy do not express the same central meaning as Adhere. This distinction matters because competitive examinations often place one accurate synonym beside three familiar but contextually unsuitable words. To verify Adhere independently, identify its part of speech, state a short definition, and place both Adhere and Stick in the same simple sentence. If the sentence retains its essential meaning and grammatical structure, the synonym relationship is supported. Learners should revise Adhere together with Stick, a brief usage cue and the contrasting distractors.