Answer:
b. depersonalization
Step-by-step explanation:
Depersonalization: The term depersonalization is a type of disorder. It signifies a person's sense of objectivity, detachment, or disinterest from himself or herself and one's identity.
A person dealing with depersonalization often feels disconnected from one's body and mind. The person often loses interest from everything around and for the person the world seems to be a dreamlike, and vague place that does not have any relation with the reality.
The cause of depersonalization can be caused due to environmental and biological factors. It can be trigger through experiences like accidents, war, abuse, etc.