Thanks for the question! So this question is asking us for the main point of this passage, and (E) says that this main point is that although the Teatro Campesino was a collective endeavor, Luis Valdez’s political and academic connections helped bring it recognition. Remember, for an answer choice to be the main point, it has to be true, and completely true at that. It’s certainly supported that Valdez had political and academic connections, but where does the author say that these connections brought recognition to the Teatro Campesino? That’s certainly not the main point of the passage, which focuses more on artistic contributions than political and academic maneuverings of Valdez. So since this discusses something that isn’t even really talked about in the passage, it can’t be the main point, and (E) is wrong.
Hope this helps! Feel free to ask any other questions that you might have.