Which is an example of parallelism?

A the squirrel darted down the tree, across the garden, and straight at my crocus bulbs

B She skis with strength. She skis with daring

C Play hard. Play with heart, and give it your all

A. the squirrel darted down the tree, across the garden, and straight at my crocus bulbs

Explanation:

In simple words, parallelism refers to maintaining similarity among a string of particular category of word types.

In this case, there is a string of adverbs: down ... across ... straight ...

The string could be verbs: darted, scurried, skipped

It could be adjectives, gerunds, infinitives, etc ...