Suppose that books are a normal good. If consumers get richer what will happen to the price and quantity of books in equilibrium? O a. Price of books falls and the quantity of books rises. O b. Price...

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Extracted text: Suppose that books are a normal good. If consumers get richer what will happen to the price and quantity of books in equilibrium? O a. Price of books falls and the quantity of books rises. O b. Price of books rises and the quantity of books falls. O c. Price of books falls and the quantity of books falls. O d. Price of books rises and the quantity of books rises.