Answer:
d. You give someone a thumbs up to let your friend know you like the meal they made.
Explanation:
Non-Verbal Communication is the symbolic expression of the verbal communication. It helps people to interpret or express thoughts especially feeling and emotions. It enforces better relationships and strong bonding among the people. Non-verbal behavior includes gestures, postures, eye contact, etc.
As per the question, a thumbs up symbolizes that meals are good and its a classic example of non-verbal communication.
