In 2011 It Was Reported That Scientists Used GPS to Create

In 2011 it was reported that scientists used GPS to create a "map" of bats' molar teeth (similar to how GPS can produce a topographic map of a mountain) .Why would scientists want to pursue this project?

A) Differences in the features of the molars might provide information about intracellular digestion processes in bats.
B) Differences in the features of the molars might provide information about how the relative size of the bats affected their abilities to acquire food.
C) Differences in the features of the molars might suggest evolutionary adaptations to diet.
D) Differences in the features of the molars might provide information about climate change in the bats' area of origin.
E) Differences in the features of the molars might provide information about mating behaviors.