HELP ME OUT PLEASE

"Underneath it all, a warren of white rabbits slumber, soft balls of Angora rising and falling in synchronized rhythm, one heartbeat with many hearts.

Note: A "warren" is a group of rabbits or the tunnels rabbits live in.

The author uses imagery to describe how the rabbits

A) Keep moving around their warren instead of hibernating

B) Seem almost like one life-form as the sleep peacefully.

C) Are all doing different things as they sleep.

D) Are just about to wake up from a long winter's sleep.​