Question

What should you avoid in order to make a more credible argument?

Answer 1

B. Logical fallacies. They are flaws in reasoning and in arguments. To make a credible argument, you want to make sure that all of your reasoning makes sense and doesn't have flaws in it. 
Hope this helps. 

Answer 2

Answer: In order to make a more credible argument, you should avoid B. logical fallacies.

Explanation: A logical fallacy is an error in reasoning that leads to make an argument non-credible. Logical fallacies are considered to be dishonest since they provide a conclusion that is not logically connected to the ideas  presented previously. Taking this into account, it can be said that a logical fallacy makes an argument weaker; therefore, unlike dramatic monologues, logos, pathos and ethos, and external conflicts, logical fallacies must be avoided.