The correct option is C right
The phrase, 'Might is right' means 'those who are powerful can do what they wish unchallenged, even if their action is in fact unjustified'. Hence, the word, 'might' in option D is the correct answer. The other word, 'tight', 'quiet', 'right' are not the correct verbs to complete the phrase. Hence, options A. B and C are incorrect.