Read the following passage: I thought I could outrun my grief, but looking back now, I see it had followed me everywhere. It was there in Boston. It was there in Amarillo and in Seattle. It was even here in Charlotte. I carried it with me like an overstuffed backpack.
How does the author's use of parallelism most clearly support the central idea?

A.
It calls attention to the similarities between grief and a backpack because it was so overstuffed.

B.
It emphasizes the number of places the speaker's grief followed him.

C.
It illustrates how the grief is like a backpack because the speaker carried it with him everywhere.

D.
It makes readers consider how grief affected the speaker in each town.