A, B, and D. But for A, it would be God singular since they just believe in one God.
Nuclear power is harnesses in the form of heat to create steam which turns turbines which generates electricity.
Answer: a. complementing
Explanation: Non-verbal messages such as facial expressions and maintaining eye contact serve different functions. Here, John pats Aaron on the shoulder while saying "You're the best!" John's non-verbal message complements his verbal message. By adding this gesture, it emphasizes what he is saying.
Non-verbal communication may also substitute, accent or regulate a spoken/verbal message.