A: which sentence has an error in parallel structure? a) marissa claimed there were three things she'd never do: cut the cards, open her own door, and clean a bathroom. b) although he felt sick, little jesse spent the afternoon playing with trucks, coloring pictures, and reading his favorite picture books. c) experts say that you are addicted to technology if you can't avoid checking your facebook, twitter, or text messages at least once every hour. d) to celebrate their mother's birthday, the children served her breakfast in bed, they also made her cards, and went to dinner at a fancy restaurant.

Right answer is D)To celebrate their mother's birthday, the children served her breakfast in bed, they also made her cards, and went to dinner at a fancy restaurant.

D) To celebrate their mother's birthday, the children served her breakfast in bed, they also made her cards, and went to dinner at a fancy restaurant.

Explanation:

The sentence that has a problem with parallel structure is the following one: To celebrate their mother's birthday, the children served her breakfast in bed, they also made her cards, and went to dinner at a fancy restaurant. The three actions the children do for their mother are written in three different grammatical structures.