So ! what is the sign of the product (−2)(4)(−6)(−3)? (20 points) select one: a. positive, because the products (−2)(4) and (−6)(−3) are negative, and the product of two negative numbers is positive b. positive, because the products (−2)(4) and (−6)(−3) are positive, and the product of two positive numbers is positive c. negative, because the product (−2)(4) is positive and the product (−6)(−3) is negative, and the product of a positive number and a negative number is negative d. negative, because the product (−2)(4) is negative and the product (−6)(−3) is positive, and the product of a negative number and a positive number is a negative number