If A = {1, 2, 3, 4, 5} and B = {2, 3, 6, 7} then the number of elements in \[(A\times B)\cap (B\times A)\] is

If A = {1, 2, 3, 4, 5} and B = {2, 3, 6, 7} then the number of element

1.	If A = {1, 2, 3, 4, 5} and B = {2, 3, 6, 7} then the number of elements in \[(A\times B)\cap (B\times A)\] is
A.	20
B.	18
C.	6
D.	4
Answer» E.

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If A = {1, 2, 3, 4, 5} and B = {2, 3, 6, 7} then the number of elements in \[(A\times B)\cap (B\times A)\] is

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