Official Explanation
All three choices are correct.
Choice A is correct: the paragraph states that one of the reasons Voltaire’s book commanded a wide audience is that he was “a literary giant.” Choice B is correct: the paragraph states that Voltaire’s amateurism in science demonstrated that nonspecialists could also understand Newton’s ideas. Choice C is correct: the paragraph refers to Voltaire’s collaborator, Madame du Châtelet. In the image described, she serves as the intermediary between Newton and Voltaire, conveying Newton’s ideas to Voltaire.
In the image described in the second sentence, Voltaire acquires his knowledge of Newton through Madame du Châtelet, who conveys Newton’s ideas — his “light of truth” —
to Voltaire. The only other sentence that contains figurative language is the next sentence, in which Voltaire is described as “a literary giant aloof . . . from disputes.” However,
this image refers not to Voltaire’s acquisition of knowledge of Newtonian ideas, but rather to his attitude regarding Newtonian ideas. Therefore sentence 2 (“In the
book’s . . . Voltaire”) is the correct choice.