The correct answer would be option B, Nodding in approval.
Nodding in approval is an example of non verbal communication.
Explanation:
People talk to each other and communicate their feelings, thoughts, expressions, likes, dislikes, views, anything, through exchanging these information either verbally or non verbally.
When people communicate their information through speaking it out, it is called as the verbal communication.
When people communicate their information non verbally, through visual cues, it is called as the non verbal communication. Non verbal communication include communicating through gestures, facial expressions, body language, touch, etc.
When someone just nod his head in approval or disapproval, it means he is using his body language to communicate. This is an example of non verbal communication.
Learn more about Ways of Communication at:
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