A bird which can swim but can’t fly. Its black and white. What is it?

In the conclusion of the radio broadcast war of the worlds, orson welles:

Read this sentence: while on vacation, i often relax by reading one of myfavorite books, go to the movies, or swimming in the pool. which revision corrects the parallel structure error? a. while on vacation, i often relax by reading one of my favoritebooks, going to the movies, or swimming in the pool. ob. while on vacation, i often relax by reading one of my favoritebooks, going to the movies, or swim in the pool. oc. while on vacation, i often relax by reading one of my favoritebooks, i like to go to the movies, or go swimming in the pool. od. while on vacation, i often enjoy relaxing by reading one of myfavorite books, go to the movies, or swimming in the pool.

Need ! question is in pic! will give !