Answer: A. Everyone came into the room.
Non-specific word choices are those words that are not specific and when used in sentences, they lack detail. Words and phrases like everyone, every man, they, them, soon, cheap, more than, rumor has it, not quite, virtually, etc. These words are vague and thus can be applied to a wide spectrum of things. In verbal communication, they are used as a way to postpone a meaningful answer when the speaker is not ready to provide it.