members of the press were required to show their credentials before being granted access to the media room which phrase from the sentences provides the best clue to the meaning of credentials as it is used here

Answer 1

The phrase "show their credentials" provides the best clue to the meaning of "credentials" as it indicates that credentials are something that can be presented or demonstrated, usually to prove one's identity or professional qualifications, particularly in a context like the press gaining access to a specific area.