Using context clues, figure out what the word apprentice means in this sentence: When Ben Franklin was about twelve, he apprenticed as a printer to his older brother, James. Being an apprentice to his brother was not easy, and James made him work hard.

A.someone who signs on to learn a trade or job from an expert

B.someone who works harder than other people his age

C.someone who takes a job that he doesn’t really want

D.someone who teaches someone else how to do something