【单选题】

Some ants make their homes under a stone. If the weather is warm, you may see many ants under the stone. If the weather is cold, many ants will be in their houses under the grounD、

Most of the ants are the workers. They are very busy. They gather food, care for the young ants.But they must have a queen ant. The queen does not work. She is very important in the ants’ family because she lays the eggs. Those eggs will become new ants. You can recognize the queen because she is much bigger than other ants.
If you can not find the ants under a stone, look for an ant nest around a small hole in the grounD、You may dig quite deep to get the ants. There are many kinds of ants inAmericA、One kind is very strong. People are afraid of it, and animals are afraid of it, too.
These ants move in large groups. They eat all the animals they meet on their way. They kill and eat elephants if the elephants don’t run away in time, and they can eat wooden houses. When the ants come near, people leave their homes.But people sometimes are glad after the ants pass through, because they can see no insects or snakes.
People are sometimes glad because the strong ants eat ______.A．elephants
B．wooden houses
C．snakes and insects