Solve the Logarithmic Equation $$\log _ { 1 / 3 } ( 2 z + 5 ) - \log _ { 1 / 3 } z = - 3$$

Multiple Choice

Solve the logarithmic equation. $$\log _ { 1 / 3 } ( 2 z + 5 ) - \log _ { 1 / 3 } z = - 3$$

A) $\left\{ \frac { 11 } { 3 } \right\}$
B) { }
C) $\{ 9 \}$
D) $\left\{ \frac { 1 } { 5 } \right\}$