According to Erikson, ego involves looking back on one’s life and accepting the outcome of it; whereas, ego entails regrets and bitterness about the course of one’s life, and a conclusion that it has not gone well and now cannot be changed.
a) inferiority; mistrust
b) despair; integrity
c) integrity; despair
d) mistrust; inferiority

Integrity versus despair

Explanation:

Integrity versus despair is the last stage of social-psychological development in Erick Erickson's developmental stage. This stage starts at the start of aging in adulthood. This stage is about to tackle the problem of his or her morality in life.

The onset can be triggered of this age by the events of life such as retirement, the loss of the partner, the loss of acquaintances and relatives, To face the terminal illness such as cancer, etc. At this stage, people show their back life that they lived and come forward with the satisfaction of despair in life.