Read this sentence from the passage.
 Everyone knows Brentwood High has a radio station: one of the most popular in
 town, but few people realize 100 kids are behind it.
 Which of the following correctly replaces the underlined part of the sentence?
 A. a radio station-one of
 B. a radio station, one of
 C. a radio station. One of
 D. a radio station; one of