Training that teaches nonverbal skills such as eye contact, vocal tone, voice volume, and verbal skills such as initiating and maintaining conversations, expressing feelings, and acting assertively, is called

a. psychoeducation

b. cogntive-behavior therapy

c. social skills therapy

d. psychotherapy

c. social skills therapy / social skills training.

Explanation:

In psychology, the term social skills training is a type of behavioral training that involves improving social skills (usually among people with autism or some other disorders), in order to make it easier for them to be socially competent. This training usually involves eye contact, voice volume, initiating and maintaining conversations and acting assertively.

Therefore, the correct answer for this question is c. social skills therapy/training.