Concept:Hadīth 34 of an-Nawawi commands every Muslim to correct evil whenever it is seen, according to his or her ability.
Explanation:The Prophet (SAW) said that whoever sees an evil should change it with his hand, that is, by direct action.
If he is not able to do so, he should change it with his tongue, which means speaking against the wrongdoing.
If he is not even able to do that, he should disapprove of it in his heart, and that is the weakest level of faith.
Thus, the hadīth teaches a graded response to wrong, not mere prayer or avoidance.
When a Muslim cannot physically stop an evil, the second duty is to speak against it clearly.
This makes the tongue a necessary tool for forbidding wrong.
Answer:A. speak against wrongdoing