Express the Given Logarithm as a Sum And/or Difference of Logarithms

Multiple Choice

Express the given logarithm as a sum and/or difference of logarithms. Simplify, if possible. Assume that all variables represent positive real numbers.
- $\log _{5} \frac{x^{2} y^{7}}{9}$

A) $\left(2 \log _{5} \mathrm{x}\right) \left(7 \log _{5} \mathrm{y}\right) -\log _{5} 9$
B) $2 \log _{5} \mathrm{x}+7 \log _{5} \mathrm{y}-\log _{5} 9$
C) $2 \log _{5} \mathrm{x}+7 \log _{5} \mathrm{y}+\log _{5} 9$
D) $2 \log _{5} \mathrm{x}-7 \log _{5} \mathrm{y}-\log _{5} 9$