Richards, Michael, and James, Karen R. "The Glowing Path to Haley's Comet" Astronomy Journal, vol. 4 (1992), 31-35. What is the italicized information?

A. an article title

B. a magazine title

C. an quotation from a book

D. the name of a book chapter

The italicized information is A. an article title.

It is a title of the article that these two people, Karen and Michel wrote, and which can be found in the magazine called Astronomy Journal. It's not a quote or the name of a chapter in a book, because this is a journal, not a book. It is just the name of something these two people wrote for a magazine.