In Situations in Which Both Vicariance and Dispersal Can Explain

Multiple Choice

In situations in which both vicariance and dispersal can explain biogeographic patterns, biologists prefer

A) the vicariance explanation.
B) the dispersal explanation.
C) the most parsimonious explanation.
D) the explanation that requires the largest number of unobserved events to account for it.
E) to flip a coin.