Erikson's Concept of an Identity Crisis Refers to What

Erikson's concept of an identity crisis refers to what?

A) Losing your memory due to emotional strain
B) Feelings of insecurity that lead to a person pretending to be someone he or she is not
C) A crisis that occurs after the true identity of a person emerges in a relationship
D) A failure to succeed in life
E) A failure to overcome an ego crisis, which results in one's inability to know who he or she is, and the struggle to find out