The sentence that uses parallel structures is B) My three favorite activities are writing, reading, and going to the library.
A parallel structure means that the same form of a verb is used in a sentence, and as you can see, here only gerunds are used - writing, reading, going - they all have -ing in the end.
The other sentences don't have a parallel structure because they don't use the same forms.
Answer:
A glow began to show in the eastern sky, <u>eventually</u> the brilliance of the sun could be seen on the horizon.
Explanation:
"Therefore" means "for that reason" which connects the two statements together. It is the only logical adverb.
