Which is an example of metaphor? be
O Merry, our parakeet, whistles like a teakettle every time the doorbell rings.
O The ocean's waves swallowed up loose pieces of driftwood along the beach.
-O Father's mustache was a furry caterpillar wiggling beneath his nose.
The school bus was as noisy and crowded as a football stadium.

An example of a Metaphor in this paragraph is -O Father's mustache was a furry caterpillar wiggling beneath his nose.

Explanation:

The sentence here is comparing two different things (a caterpillar to a mustache) without using like or as If it were to use like or as like the other sentences it would be a Simile.

dude, * is in your own words, not mine.

* = the answer