Answer:
C.The bats response to the croaking behavior of male frogs led to selective pressure against the croaking trait in frogs.
Explanation:
This is very easily explained by the dact that the bats that hunted down the frogs were more attracted to those that craoked because the bats had sonars and the sond of the coraking of the male frogs attracted the bats attention and they were more easily spotted, this made the male coraking frogs an easier prey and made the number of croaking frogs to go down, while allowing the non croaking frogs to survive till adulthood and did a selective pressure in favor of the non croaking frogs.
