Plz 20 points and more if a = − 65 and b = 8, the product of a x b models which rule for multiplying integers? what is the product? a) (+)(+) = +; the product is 520. b) (−)(−) = +; the product is 520. c) (+)(−) = −; the product is −520. d) −(−)(+) = −; the product is −520. eliminate