Which Comments by an Elderly Person Best Indicate Successful Completion

Which comments by an elderly person best indicate successful completion of the developmental task?

A) "I am proud of my children's successes in life."
B) "I should have given to community charities more often."
C) "My relationship with my father made life more difficult for me."
D) "My experiences in the war helped me appreciate the meaning of life."
E) "I often wonder what would have happened if I had chosen a different career."