C is correct because when they role along, they are happy. That's how they role along. If that makes sense. They are merry when they do it. They role along merry, over the ocean.
~Deceptiøn
Answer:
"volunteering is a good way to gain skills and work experience."
Explanation:
"By" is the preposition in the phrase "<span>He lives by a great little pizza place."</span>
