When Two Waves with Equal Amplitude and the Opposite Phase

Multiple Choice

When two waves with equal amplitude and the opposite phase sign interact this results in generating

A) a wave that has half the amplitude of the original wave.
B) a wave that has double the amplitude of the original wave.
C) no wave as it has an amplitude of zero.
D) two new waves that have opposite phase signs of each other.
E) none of these choices.