If \[A=\{2,\,4,\,5\},\,\,B=\{7,\,\,8,\,9\},\] then \[n(A\times B)\] is equal to

If \[A=\{2,\,4,\,5\},\,\,B=\{7,\,\,8,\,9\},\] then \[n(A\times B)\] is

1.	If \[A=\{2,\,4,\,5\},\,\,B=\{7,\,\,8,\,9\},\] then \[n(A\times B)\] is equal to
A.	6
B.	9
C.	3
D.	0
Answer» C. 3

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If \[A=\{2,\,4,\,5\},\,\,B=\{7,\,\,8,\,9\},\] then \[n(A\times B)\] is equal to

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