Which answer choice is an idiom?(1 point)

Responses

She walked as quietly as a mouse.
She walked as quietly as a mouse.

It is raining cats and dogs.
It is raining cats and dogs.

The sky is blue.
The sky is blue.

All the world is a stage.
All the world is a stage.

1 answer

The answer choice that is an idiom is: It is raining cats and dogs.

This phrase is an idiom that means it is raining very heavily.