Write the Expression as a Sum And/or a Difference of Logarithms

Multiple Choice

Write the expression as a sum and/or a difference of logarithms with all variables to the first degree.
- $\ln \frac{\sqrt{\mathrm{fz}}}{\mathrm{z}^{9}}$

A) $\ln \mathrm{f}-\frac{17}{2} \ln \mathrm{z}$
B) $\ln f-9 \ln z$
C) $\frac{1}{2} \ln \mathrm{f}-\frac{17}{2} \ln \mathrm{z}$
D) $\frac{1}{2} \ln \mathrm{fz}-9 \ln \mathrm{z}$