Select the most appropriate meaning of the given Idiom:-

"Don't look as if a gift horse in the mouth   "

An advice not to refuse something that is good.

The most appropriate meaning of the idiom "don't look a gift horse in the mouth" is an advice not to refuse something that is good. The idiom comes from the literal meaning of looking at a horse's teeth to assess its age and value. In the same way, when someone "looks a gift horse in the mouth," they are being critical of something that has been given to them, even though it is a good thing.

The other options are not as accurate. Feeling anxious is not an idiom, and it does not mean to be critical of something that has been given to you. Perplexed is not an idiom either, and it does not mean to be critical of something that has been given to you. The feeling of being at the top is not an idiom either, and it does not mean to be critical of something that has been given to you.