All the students pulled out their pens. They placed them on their desks. Ruth's pen was different. Each of her writing instruments has their caps
destroyed by nervous chewing.
Change their pens to his or her pen.
Change their desks to his or her desk.
o Change their caps to its cap.
o No change is necessary.

Which sentence uses parallel structure? a. spring is a time for growth, renewal, and to rain. b. science provides us with some answers, some questions, and figuring out how our world works. c. as long as you use your best judgement, learn from your mistakes, and taking advice, you’ll grow as a person. d. once things are done, there is no need to dwell them, to worry about them, or to decide who to blame.