Which of the following statements is inaccurate with respect to the sensory system of katydids?

A)Katydids' ears are located in the bend on their front legs.
B)Katydids have excellent hearing.
C)Katydids' hearing is used to identify mating calls of members of their own species.
D)Katydids cannot detect any echolocation sounds made by different species,such as bats.