AMC8 1993 Problem 1

Past Contests AMC8 AMC 8 - 1993
1

Which pair of numbers does NOT have a product equal to 36 ?

Answer Choices
A. \{-4,-9\}
B. \{-3,-12\}
C. \left\{\dfrac{1}{2},-72\right\}
D. \{1,36\}
E. \left\{\dfrac{3}{2}, 24\right\}