Choose the idiom/phrase that can substitute the highlighted group of words meaningfully.
The matter was discussed privately without any intruders.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Behind closed doors
Behind closed doors is the suitable option.
This expression describes an action carried out in secret, without disclosure to the public or outside interference. It is quite consistent with the idea of a private conversation.
Compared to other option
Through thick and thin: This refers to continuously supporting someone or something during both good and terrible times. It has nothing to do with privacy or the absence of intruders.
On the fence: This expression refers to not taking a side in a dispute or being unsure about one's decision. Furthermore, it has nothing to do with privacy or the lack of intruders.
Run out of steam: To lose energy and enthusiasm. The context of having a private conversation is unrelated to it.