question_answer

If \[A=\left\{ 1,\text{ }2,\text{ }3 \right\},\text{ }B=\left\{ 3,\text{ }8 \right\},\]then\[\text{(A}\cup B\text{)}\times \]\[(A\cap B)\]is equal to

A)  {(3, 1), (3, 2), (3, 3), (3, 8)}            

B)  {(1, 3), (2, 3), (3, 3), (8, 3)}

C)  {(1, 2), (2, 2), (3, 3), (8, 8)}            

D)  {(8, 3), (8, 2), (8, 1), (8, 8)}