Suppose that P=2^{m} and Q=3^{n}. Which of the following is equal to 12^{m n} for every pair of integers (m, n) ?

**Answer Choices**

A. P^{2} Q

B. P^{n} Q^{m}

C. P^{n} Q^{2 m}

D. P^{2 m} Q^{n}

E. P^{2 n} Q^{m}

Suppose that P=2^{m} and Q=3^{n}. Which of the following is equal to 12^{m n} for every pair of integers (m, n) ?

**Answer Choices**

A. P^{2} Q

B. P^{n} Q^{m}

C. P^{n} Q^{2 m}

D. P^{2 m} Q^{n}

E. P^{2 n} Q^{m}