If the author wanted to write a story in which the main character looks back on the events of his long, full life, which would be the best way to start this story?

a) with the main character as a teenager in high school
b) with the main character as an 85-year old man, deep in thought about everything he has been through over the course of his life
c) with the main character as a 25-year old in his first job
d) with the main character as a four year old wondering about his future.