Use the sentence to answer the question.
Members of the press were required to show their credentials before being granted 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?
a. one woman was turned away
b. members of the press
c. before being granted access to the media room
d. the badge issued to her by the newspaper