The answer would MOST LIKELY be C, since lain is the verb.
Writing is a process that involves several distinct steps: prewriting, drafting, revising, editing, and publishing. It is important for a writer to work through each of the steps in order to ensure that he has produced a polished, complete piece. The writing process is not always linear. A writer may move back and forth between steps as needed. For example, while you are revising, you might have to return to the prewriting step to develop and expand your ideas.
"A. You know, of course, that she used to dive for her college swim team." does not have any errors in comma usage. "Of course" is almost always surrounded by commas.
Answer:
Golding uses description to emphasize how the island has influenced Jack.
