Jason Lives in New York and Is Going to California

Multiple Choice

Jason lives in New York and is going to California for the first time.He has always preferred to stay up late at night and get up late in the morning.Since he normally goes to bed at three a.m.and California time is three hours earlier than New York's,he thinks he will be on the same sleep schedule as everyone else.However,by the third day Jason finds he isn't sleepy until three a.m.What is responsible for resetting Jason's body clock?

A) Phototherapy
B) Circadian rhythms
C) The pons
D) Wernicke's area