Multiply $\begin{array}{l}3 \text { lb \quad9oz } \\\times \quad \quad 6 \\ \hline\end{array}$

Multiple Choice

Multiply: $\begin{array}{l}3 \text { lb \quad9oz } \\\times \quad \quad 6 \\ \hline\end{array}$

A) 20 lb 6 oz
B) 20 lb 7 oz
C) 18 lb 15 oz
D) 22 lb 6 oz
E) 21 lb 6 oz