If the set $A$ has $p$ elements, $B$ has $q$ elements, then the number of elements in $A × B$ is
If the set $A$ has $p$ elements, $B$ has $q$ elements, then the number of elements in $A × B$ is
- A
$p + q$
- B
$p + q + 1$
- C
$pq$
- D
${p^2}$
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