Expand a Ssume That All Variables Represent Positive Real Numbers $\log _{7}\left(\frac{12 \sqrt{\mathrm{r}}}{\mathrm{s}}\right)$

Multiple Choice

Expand. A ssume that all variables represent positive real numbers.
- $\log _{7}\left(\frac{12 \sqrt{\mathrm{r}}}{\mathrm{s}}\right)$

A) $\log _{7} 12 \cdot \frac{1}{2} \log _{7} \mathrm{~m} \div \log _{7} \mathrm{~s}$
B) $\log _{7}(12 \sqrt{r}) -\log _{7} s$
C) $\log _{7} \mathrm{~s}-\log _{7} 12-\frac{1}{2} \log _{7} \mathrm{r}$
D) $\log _{7} 12+\frac{1}{2} \log _{7} r-\log _{7} s$