Sergio Just Turned 53,and He Feels as Though He Is

Sergio just turned 53,and he feels as though he is not making any real contributions through the career he has chosen.As he sits at his desk each day,he fails to find meaning in his life and feels as though he has no purpose or direction.What would Erikson say about Sergio's personality development

A)  He is experiencing feelings of despair and bitterness. 
B)  He is displaying signs of isolation. 
C)  He is showing evidence of inferiority and doubt. 
D)  He is becoming self-indulgent and self-absorbed.