B is the answer of this question
Answer:
A- Because he is a proven crook, my opponent's points are invalid.
Explanation:
>Ad hominem fallacy is creating a reason for something without logic
Contrapositive is the negation of both the premise and the conclusion. in the other order
Let's take:
conditional statemet: all men are mortal (if one is a man, one is mortal)
the counterpositive is :
is one is not mortal, one is not a man - this statement is also true.
So, the correct answer is: its counterpositice is also true
