In the summer reading program, a participant earns 50 stars for reading 10 books. The library tracks the number of stars (y, vertical axis) and books (x, horizontal axis) on a graph. Which statements are correct? A) Point (5, 1) represents the unit rate. B) Point (1, 5) represents the unit rate. Eliminate C) Point (0, 50) represents the unit rate. D) Point (100, 20) represents reading 20 books. E) Point (20, 100) represents reading 20 books.