If the set A has p elements, B has q elements, then the number of elements in $\mathrm{A}\times \mathrm{B}$ is

• A

  $\mathrm{p}+\mathrm{q}$

• B

  $\mathrm{p}+\mathrm{q}+1$

• C

  $\mathrm{pq}$

• D

  ${\mathrm{p}}^2$