Answer: A. dialectic method
Explanation:
The DIALECTIC METHOD or DIALECTICS at it's basic level is a sort of debate between people of opposing viewpoints who wish to use the debate to come up with the best viewpoint by stating the facts and truths of their viewpoints.
They speak on whatever misgivings they may have about the other and explain in a logical manner why their views are better.
It is 'sort' of like a debate because unlike debates, it isn't supposed to get emotional but be fact and merit based.