Which of the following is true about prosocial behavior? a. How often people have moved from one place to another influences how helpful they are.  b. There is no effect of personality on prosocial...

Which of the following is true about prosocial behavior?

a. How often people have moved from one place to another influences how helpful they are.

 b. There is no effect of personality on prosocial behavior.

 c. Being in a bad mood decreases prosocial behavior.

d. Being in a good mood decreases prosocial behavior.