How can you ensure that your argument is credible?
a. by attacking your opponent
b. by appealing to emotions
c. by avoiding logical fallacies
d. by using only facts and evidence

The right answer is "D. By using only facts and evidence"

For the argument to be reliable it is necessary to use consistent and well-founded facts and evidence, since they are stronger and more convincing. The author of the argument has to inform the listener of the reasons that led him to take a certain position, avoiding superficial or unjustified motives, such as: "because nobody I know disagrees," "because I have heard", "because everyone thinks so "," because in the neighborhood everyone says "etc.

search it up on google or think from your brain make it work harder.