Shame is negative and you want to hide when something goes badand you are dissapointed at yourself, modesty is to be good at something but not show off, it is way different
The answer for your question is A
The correct answer would be "a character who opposes or stands against the main character"
I hope I've helped!
The answer is, option A. True. A noun clause does not function as a modifier. A noun clause cannot function as a modifier because unlike adjectives and adverbs, this clause cannot be independent by itself and they can only function within a main sentence.