The answer is B
Explanation: The author's details are very important when one is evaluating a text. The other answer choices are incorrect because first: when comparing two text, one needs a detailed analysis for both text to be able to tell the similarities and differences. Second: A thesis statement shouldn't be obvious. It is to be in a way where the reader should figure it out. And finally: Your own opinion does matter but it is not important when it comes to supporting your evaluation of a text. Textual evidence is the one important when it comes to supporting what you say or do.