Answer:
 intimacy vs. isolation
Explanation:
Erikson theory of psychosocial development proposed 8 stages of development over the course of human lives. The sixth stage is known as Intimacy vs Isolation. This stage occurs between the ages of approximately 19 and 40 and the major conflict during this stage is on the formation of intimacy and relationship with others. 
 
        
             
        
        
        
I think it is going to be C.
        
                    
             
        
        
        
Make Goals
Take Things One Step at a Time.
Keep a Journal to write down things that make you happy.
 
        
             
        
        
        
1.) He is using his large muscles
2.)Skeletal Muscles