Which of the following is an example of simile?

A. This home was his Camelot, a place where everything conformed
to the ideals of refinement and purity.

B. Spring is a promise of hope following on the heels of winter.

C. Freddy had had his heart broken so many times he had taken to
leaving it at home whenever he went out.

D. As she ran ahead, her strawberry-colored curls bobbed up and
down like gulls riding the waves.