Many species of fruit flies feed on fruit produced by fruit trees. A mutation arises in a population of fruit flies that causes its carriers to change their host plant preference from tree species A to a different species of fruit tree (B). These flies complete their whole life cycles on the host tree, from birth to courtship and reproduction to death. If host species A and the host species B occur in the same geographic location, what type of process could potentially lead to speciation between populations of fruit flies with a different host tree preference?

a. Sympatric
b. Peripatric
c. Danicapatricd. Allopatric