Question

Which sentence contains correct parallel structure?


My favorite camping activities are going fishing, to hike, and swim.


My favorite camping activities are fishing, going on a hike, and swimming.


My favorite camping activities are fishing, hiking, and swimming.


My favorite camping activities are to fish, hiking, and to swim.

Answer 1

Answer:

My favorite camping activities are fishing, hiking, and swimming.

Explanation:

Parallelism consists in using identical grammatical structure.

The third option is correct because it uses three gerunds fishing, hiking, and swimming as predicative nouns.    That's correct parallel structure.