Express as the Logarithm of a Single Expression $6 \log _ { b } m - \log _ { b } n$

Multiple Choice

Express as the logarithm of a single expression. Assume that variables represent positive numbers.
- $6 \log _ { b } m - \log _ { b } n$

A) $\log _ { \mathrm { b } } \mathrm { m } 6 \div \log _ { \mathrm { b } } \mathrm { n }$
B) $\log _ { \mathrm { b } } ( \mathrm { m } 6 - \mathrm { n } )$
C) $\log _ { \mathrm { b } } \frac { \mathrm { m } ^ { 6 } } { \mathrm { n } }$
D) $\log _ { \mathrm { b } } \frac { 6 \mathrm {~m} } { \mathrm { n } }$