According to Einstein's Theory of General Relativity,if You Watch a Clock

According to Einstein's theory of general relativity,if you watch a clock from a distant location as it is moved closer to a source of gravity,you will see the clock:

A) maintain the same rate since time is unaffected by gravity.
B) change its rate if it is moving rapidly but maintain its standard rate if stationary in a gravity field.
C) slow down.
D) run faster.