Explanation
In this vocabulary item, Praise is the closest synonym of Extol, so option B is correct. The word Extol and the word Praise 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 Extol with Praise keeps the core idea intact without reversing the tone or changing the action, quality or state expressed by the target word. The alternatives Summon, Condemn and Tend do not express the same central meaning as Extol. This distinction matters because competitive examinations often place one accurate synonym beside three familiar but contextually unsuitable words. To verify Extol independently, identify its part of speech, state a short definition, and place both Extol and Praise in the same simple sentence. If the sentence retains its essential meaning and grammatical structure, the synonym relationship is supported. Learners should revise Extol together with Praise, a brief usage cue and the contrasting distractors.