Read the excerpt from Article A.

An adult sea otter's coat can contain up to 1 billion individual hairs! These hairs form a protective, waterproof layer, which traps air and provides insulation.

Select the correct use of a direct quotation from this excerpt.


According to Article A, "These hairs form a protective, waterproof layer."

The author explains, "that an adult sea otter's coat forms a protective layer".

The hair forms a protective, waterproof layer that "provides insulation."

"An adult sea otter's coat can contain up to 1 billion individual hairs!"