Final answer:
An echolocating bat can emit cries in the range of 20,000 to 50,000 Hz. Bats use echolocation to navigate and find food in their environment by emitting sound waves and sensing the reflected waves.
Step-by-step explanation:
An echolocating bat can emit cries in the range of (B) 20,000 to 50,000 Hz. Bats use echolocation to navigate and find food in their environment by emitting sound waves and sensing the reflected waves. The range of frequencies they emit allows them to detect nearby insects by hearing the echo of their ultrasonic clicks.