Derealization is defined as a. vivid hallucinations. b. ...

[Shelles]

Derealization is defined as
 
  a. vivid hallucinations.
 b. altered perception involving loss of the sense of one's own reality.
 c. altered perception involving loss of the sense of reality of the external world.
  d. the feeling that one is no longer a person.

Question 2

Depersonalization is defined as
 
  a. altered perception including loss of the sense of one's own reality.
 b. altered perception involving loss of the sense of reality of the external world.
  c. vivid hallucinations.
 d. the feeling that one is no longer a person.

[allisonblackmore]

Answer to Question 1

c

Answer to Question 2

a