In the passage above, what roles do the highlighted sentences serve? A. The first sentence is the main idea, and the second sentence restates the main idea. B. The first sentence makes the central argument of the passage, and the second sentence supports the argument. C. The first sentence provides the primary argument, and the second sentence is the secondary argument. D. The first sentence is a secondary argument, and the second sentence is evidence against that argument. E. The first sentence introduces the topic, and the second sentence is the conclusion.