Select the most appropriate idiom or phrase to complete the given sentence.
The final round contestants at the Miss Thailand pageant will be tested for brains because __________.

Correct option is C

Option (c) is the correct meaning of the given idiom/phrase.
Beauty is only skin deep: External beauty is superficial; what truly matters is a person’s inner qualities like intelligence, character, and values. (Hindi idiom sense: सुंदरता केवल बाहरी होती है / असली सुंदरता चरित्र में होती है) This fits the context because the contestants are being tested for brains, not just looks.
Example: He chose her for her kindness—after all, beauty is only skin deep.
Other related idioms and their meanings:
· Beauty is in the eye of the beholder: beauty is subjective (Hindi: सुंदरता देखने वाले पर निर्भर है)
· Don’t judge a book by its cover: don’t judge by appearance (Hindi: केवल बाहरी रूप से मत आंकना)
· Handsome is as handsome does: actions define worth (Hindi: कर्म ही पहचान है)