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(C) The Cartesian product of two sets $A$ and $B$,denoted by $A 	imes B$,is defined as the set of all ordered pairs $(a, b)$ such that $a \in A$ and

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$pq$

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(C) The Cartesian product of two sets $A$ and $B$,denoted by $A 	imes B$,is defined as the set of all ordered pairs $(a, b)$ such that $a \in A$ and $b \in B$. If the number of elements in set $A$ is $n(A) = p$ and the number of elements in set $B$ is $n(B) = q$,then the number of elements in the Cartesian product $A 	imes B$ is given by the formula: $n(A 	imes B) = n(A) 	imes n(B) = p 	imes q = pq$.

If the set $A$ has $p$ elements and the set $B$ has $q$ elements,then the number of elements in $A \times B$ is:

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