A thesis statement is to give a brief summary of what exactly your body paragraphs will be about. For example, the author shows pathos, ethos and logos to persuade his audience that all people need to open their eyes and realize how technology is ruining humanity.
Those three point, ethos, pathos, logos will their own paragraphs to explain the claim.
The correct answer is B) because a run-on sentence is a sentence which is incorrectly punctuated. In this case, B doesn't have the right punctuation mark. Instead of a comma (,) perhaps a semicolon (;) should be used.
That novel is a parody of a knighthood which was long forgotten. Don Quixote reads chivalric books instead of being the knight himself. He becomes sort of mad - he sees dragons and enemies where there are only windmills. He thinks his love Dulcinea will never age and will forever wait for him - whereas in reality she is just a normal peasant who doesn't even know him. The values of knighthood are mocked in this novel, and that is what makes it a parody.