You Have Just Returned Home After Being Away on Vacation

Multiple Choice

You have just returned home after being away on vacation for several weeks. Your body had adjusted to the different time zone you were in, which was eight hours ahead of your local time at home. You slept for 8 hours on the flight back and it is now just a few minutes before midnight local time as you walk in your front door. If you try to lie down to sleep now, it is likely that you will have difficulty because your _____ will be releasing _____ melatonin than it normally would at this time of night.

A) pineal gland; more
B) pituitary gland; more
C) pineal gland; less
D) pituitary gland; less
E) thalamus; more