Some populations of bats live in areas with high levels of noise pollution, such as near heavily trafficked bridges. how might the hunting behavior of bats be affected by such an environment?

In the mentioned conditions, the hunting behaviors of the bats are influenced by the noisy surroundings as the hunting methods of the bats will get modified to amend with their noisy environments. The bats rely on echolocation in order to hunt their prey.  

Thus, in a surrounding with ample noises, it becomes difficult for the bat to detect or hear the sounds of the prey amid the noises of the city. This could result in two outcomes, that is, either the population of the bat gets decreased, or a new hunting technique gets developed within the population of the bats.  

b is the best answer for this question.