It can be inferred from the passage that from a historical perspective, the European conquest of the Americas can be viewed as

A． Bumps and grooves on the sea-floor play a greater role in the shoaling process than was initially thought.
B． Revised analyses of seismic data can in fact resolve energy distribution patterns shorter than the seismic waves themselves.
C． Aftershocks experienced in the area of tsunami generation are found to be influenced by a greater variety of factors than previously expected.
D． On further investigation, the sea-surface displacement is found to vary from that which occurs at the ocean bottom.
E． Much of the way a tsunami behaves is found to be dictated by the size of the protruding land mass it collides with.

A． faultless
B． innocent
C． unassailable
D． tawdry
E． ambitious