Answer:
D
Explanation:
ot would be D because if he wants to stay safe then he would need to be on guard
A, amino acids are used to synthesise vitamin D. that's all I know. Have a good day :)
Answer:
Reinforcement theory of motivation was proposed by BF Skinner and his associates. It states that individual’s behaviour is a function of its consequences. It is based on “law of effect”, i.e, individual’s behaviour with positive consequences tends to be repeated, but individual’s behaviour with negative consequences tends not to be repeated.
Athletic trainers help athletes and physically active people stay healthy for what they do on a daily basis. Hope this is what u need