What is a FOIA request designed to do$?$

A$.$ It's filed by plaintiffs in defamation lawsuits and is used by plaintiffs to require journalists to reveal their sources of libelous information against plaintiffs.

B$.$ It's filed by defendants in defamation lawsuits and is used by defendants to require plaintiffs to explicitly show how they were injured by the defendant's alleged defamation.

C$.$ This is filed by government agencies to obstruct journalists' access to public records.

D$.$ This is filed by journalists to gain access to public records held by the government that have been labeled secret or confidential, which should not have been labeled secret or confidential.