If it's "under your nose", it's
-
well hidden
-
your fault
-
within sight
-
very annoying
C
Correct answer
Explanation
The idiom "under your nose" means something is very close by, easily visible, or right in front of you - often when you fail to notice it despite its obviousness. It's used to describe things that should be easily seen or found but are somehow overlooked. Option C correctly identifies this as meaning within sight.