PLZ Don't Skip This Question

What effect did Hawthorne's life have on "The Scarlet Letter"?

A
He took a very long time to write the book because he also worked in a custom house.
B
He based some of the characters in the book on himself and the people he knew.
C
He used a letter he found about his family's history as the basis for the story.
D
He was able to get his stories published easily because he knew other writers.