3 paragraph essay on Frankl credibility

I need help with a English question. All explanations and answers will be used to help me learn.

1. Write and post a 3-paragraph essay arguing whether or not Frankl is credible. Use examples from the book (e.g. quotations with MLA in-text citations) and use the language we’ve been learning (e.g. authority, bias, ethos/pathos/logos, etc.) to defend your answer. Use the work we’ve done on paragraph structure to make sure that your paragraph is well organized. Include refutation of a counterargument.