Select the most appropriate meaning of the given idiom.

Under the nose

Inclose vicinity

The most appropriate meaning of the idiom "under the nose" is in close vicinity. It means that something is right in front of someone's face, but they are not aware of it. For example, you might say "The answer was right under my nose the whole time."

The other options are incorrect. "Being discussed" is not an idiom. "To be anxious about" is the meaning of the idiom "to be worried about." "Under impediment" means to be hindered or obstructed.