Non verbal communication conveys meaning without spoken or written words through gestures,facial expressions and body movements. Nodding and smiling are classic non verbal signs of agreement or approval. Therefore,the studentโs behaviour in the stem is an example of non verbal communication.
Option A:
Verbal communication would involve saying โyesโ or expressing agreement in words,which is not described here.
Option B:
Non verbal signals often appear spontaneously and can strengthen or even replace verbal messages,making option B correct.
Option C:
Written communication uses text and symbols on paper or screens and does not cover silent gestures.
Option D:
Mass communication concerns media reaching large audiences and is unrelated to a single studentโs gesture in class.
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