Multiply and Simplify $\left(mn^{4}\right)\left(m^{2} n^{7}\right)$ A) $m^{2} n^{11}$ B) $m^{2} n^{28}$ C) $2 m^{3} 2 n^{11}$

Multiple Choice

Multiply and simplify.
- $\left(mn^{4}\right) \left(m^{2} n^{7}\right)$

A) $m^{2} n^{11}$
B) $m^{2} n^{28}$
C) $2 m^{3} 2 n^{11}$
D) $m^{3} n^{11}$