Multiply And, If Possible, Simplify $\frac{\mathrm{k}^{2}+5 \mathrm{k}+6}{\mathrm{k}^{2}+11 \mathrm{k}+18} \cdot \frac{\mathrm{k}^{2}+9 \mathrm{k}}{\mathrm{k}^{2}+12 \mathrm{k}+27}$

Multiple Choice

Multiply and, if possible, simplify.
- $\frac{\mathrm{k}^{2}+5 \mathrm{k}+6}{\mathrm{k}^{2}+11 \mathrm{k}+18} \cdot \frac{\mathrm{k}^{2}+9 \mathrm{k}}{\mathrm{k}^{2}+12 \mathrm{k}+27}$

A) $\frac{\mathrm{k}}{\mathrm{k}+9}$
B) $\frac{1}{k+9}$
C) $\frac{k^{2}+9 k}{k+9}$
D) $\frac{\mathrm{k}}{\mathrm{k}^{2}+11 \mathrm{k}+18}$