Why Do Ships in the Open Ocean NOT Notice Passage

Multiple Choice

Why do ships in the open ocean NOT notice passage of a tsunami wave?

A) The wave goes by so fast that it is gone before anyone notices.
B) The long time between wave crests dictates that the wave flanks have almost no slope.
C) Ships are carried on the crest of the wave, so they don't feel any up or down motion.
D) Although the wave crests are several hundred meters high, the time between them is several hours, so no one notices.
E) The wave hits the ship so hard and fast that no one survives to tell about it.