Hadīth 34 of an-Nawawi teaches that a good Muslim should
keep away from wrongdoing
repent of wrongdoing
speak against wrongdoing
always pray against any wrongdoing
Correct answer is C
On the authority of Abu Sa'eed al-Khudri (RadhiyaAllahu 'anhu) who said: "I heard the Messenger of Allah (SallaAllahu 'alayhi wasallam) say,
"Whosoever of you sees an evil, let him change it with his hand; and if he is not able to do so, then [let him change it] with his tongue; and if he is not able to do so, then with his heart - and that is the weakest of faith."