Why does the author describe the duck’s bowl as self-cleaning? A. The duck eats all of the food every night, leaving the bowl empty.

A.

The duck eats all of the food every night, leaving the bowl empty.

B. The duck food sticks to the frozen water when the bowl is emptied.

B.

The duck food sticks to the frozen water when the bowl is emptied.

C. The duck food scatters about the yard when the bowl is knocked over.

C.

The duck food scatters about the yard when the bowl is knocked over.

D. The duck displaces the food from the bowl when she drinks the warm water.

D.

The duck displaces the food from the bowl when she drinks the warm water.