Tobias has been working extremely hard and has gotten only about an hour or two of sleep for the past two nights. At this point, he is MOST likely driven

Tobias has been working extremely hard and has gotten only about an hour or two of sleep for the past two nights. At this point, he is MOST likely driven primarily by _____ needs.
A) safety
B) self-transcendence
C) esteem
D) physiological