question_answer

If two sets A and B are having 99 elements in common, then the number of elements common to each of the sets \[A\times B\] and \[B\times A\] are

A)  \[{{2}^{99}}\]                                   

B)  \[{{99}^{2}}\]

C)  \[{{100}^{99}}\]                    

D)  \[{{18}^{99}}\]

E)  None of these