Expand Assume That All Variables Represent Positive Real Numbers $\log _ { 19 } \left( \frac { 5 } { s ^ { 2 } r } \right)$

Multiple Choice

Expand. Assume that all variables represent positive real numbers.
- $\log _ { 19 } \left( \frac { 5 } { s ^ { 2 } r } \right)$

A) $\frac { 1 } { 5 } \log _ { 19 } 3 - 2 \log _ { 19 } s - 2 \log _ { 19 } r$
B) $\log _ { 19 } 3 - \log _ { 19 } s - \log _ { 19 } r$
C) $\frac { 1 } { 5 } \log _ { 19 } 3 - 2 \log _ { 19 } s - \log _ { 19 } \mathrm { r }$
D) $5 \log _ { 19 } 3 - 2 \log _ { 19 } s - \log _ { 19 } 5$