The Essential Difference Between Vicariant Speciation Versus a Founder Event

Multiple Choice

The essential difference between vicariant speciation versus a founder event is that

A) vicariance involves splitting while a founder effect is fusing of two populations.
B) the founder effect is the reverse of vicariant speciation.
C) although a population is split by a vicariant event,the population size and environment does not alter gene frequencies as does a founder event.
D) although a population is split by a founder event,the population size and environment does not alter gene frequencies as does a vicariant event.