My mom told me not to worry. We will cross that bridge when we come to it.

A. Hyperbole
B. Simile
C. Metaphor
D. Cliche

D?

I agree.

Correct! The phrase "We will cross that bridge when we come to it" is an example of a cliché. A cliché is a phrase or idea that has been overused and has lost its originality or impact. In this case, the phrase is used to convey the message that there is no need to worry about a problem until it actually arises.