Members of the press were required to show their credentials before being granted access to the media room. One woman was turned away because she could not find the badge issued to her by the newspaper she worked for.

Which phrase from the sentences provides the best clue to the meaning of credentials as it is used here?
One woman was turned away

before being granted access to the media room

the badge issued to her by the newspaper

Members of the press

The phrase "the badge issued to her by the newspaper" provides the best clue to the meaning of credentials as it is used here.