Consider the following statements about elephants:

A. The weight of three month-old baby elephant is about 2 quintals.

B. Elephants do not rest very much. They sleep only for two to four hours.

C. An adult elephant can eat more than two quintals of leaves and twigs in 24 hours.

D. An elephant herd comprises members of two-three families and the oldest male is the leader of the herd.

The correct statement are: