Which literary device does author Fitzgerald mainly use in the passage below (paragraph 5)?

"Gatsby’s notoriety, spread about by the hundreds who had accepted his hospitality and so become authorities upon his past, had increased all summer until he fell just short of being news."

A. sarcasm—he pokes fun at the people who claim to know all about Gatsby simply because they attended his parties
B. hyperbole—he exaggerates when he refers to “the hundreds who had accepted his hospitality”
C. both A and B
D. neither A nor B