The Table Lists the Number of Offspring Produced, by Genotype

Multiple Choice

The table lists the number of offspring produced, by genotype at the B locus, in three different populations. Assuming all other things are equal, in which population(s) would you expect variation at the B locus to be maintained?

A) Only population 1
B) Only population 2
C) Only population 3
D) Both populations 1 and 2
E) Both populations 1 and 3