According to the mortality concerns will increase disidentification with a group if the group no longer provides meaning and is seen as temporary.

The answer is social identity theory When a cluster no longer shields mortality concerns by providing meaning and value, group members may dis-identify, particularly if they regard the group as temporary. While leave because Boosting self-image when a group member cannot view the group positively, membership may decrease self-esteem, promoting the person to leave. 

there are treatment options for depression (mdd) that may work for you. one way of treating depression may be to affect the levels of certain chemicals that brain cells use to communicate, called neurotransmitters. scientists believe that certain neurotransmitters may be out of balance in depression.

although the exact way depression medications shown to ease overall depression symptoms in some people work is unknown, scientists think that some medications work by affecting the levels of a neurotransmitter called serotonin in the brain. other treatments work by affecting the levels of other neurotransmitters like norepinephrine or dopamine.

answer; i believe the correct answer is (8) eight.