The sentence below states a main idea of the passage. "The acorn woodpecker's process of gathering and storing food makes it most unusual." (paragraph 6)

What details from the passage support this main idea?

A. The acorn woodpecker has an unusual process of gathering and storing food.

B. The bird drills a hole wiht its beak into a wooden structure, such as a fence post or utility pole.

C. One of the most unusual habits of the acorn woodpecker is that it doesn't leave the nest" in the way that other birds do.

D. After the acorn dries out and becomes smaller in size, the bird moves the acorn to a smaller hole in the granary.

E. They even help their parents raise more young.​