In the nineteenth century, scientists showed that many familiar substances such as oxygen and carbon had a smallest recognizable constituent and called them atoms, but as even smaller constituents have been discovered, history has shown the name to be______.

A． Unfortunate on the whole, but surprising in historical terms
B． Less disruptive in South America
C． Too ethically complex to be easily judged
D． Unexpected, given the history of similar conquests in Europe
E． Tragic but inevitable, given historical circumstances

A． The speed of the crustal plates that slip along each other in the imaginary fault plane
B． The vertical motion of the sea floor where the tsunami generates
C． The orientation of the assumed fault plane
D． The degree of refraction and shoaling
E． The presence of bumps and grooves on the seafloor