Relative to a Stationary Observer, a Moving Clock

Multiple Choice

Relative to a stationary observer, a moving clock

A) always runs slower than normal.
B) always runs faster than normal.
C) keeps its normal time.
D) can do any of the above. It depends on the relative velocity between the observer and the clock.
E) can do any of the above. It depends on the relative energy between the observer and the clock.