The correct answer is A. editors purposely omit information about some topic.
Gatekeeping in the media is the process of filtering which information will "pass through each gate section". A gatekeeper can control people's knowledge and what news they have access to, which begins from deciding which sources they will include up to which stories will be printed and what information will be shared or omitted. Gatekeeping can be useful, but also dangerous because of the power a gatekeeper has over the public's opinion.
