Perform the Operation and Give the Answer as a Fraction $\left( - \frac { 4 } { 9 } \right) - \left( - \frac { 5 } { 8 } \right)$

Multiple Choice

Perform the operation and give the answer as a fraction in lowest terms.
- $\left( - \frac { 4 } { 9 } \right) - \left( - \frac { 5 } { 8 } \right)$

A) $\frac { 13 } { 9 }$
B) $\frac { 72 } { 13 }$
C) $\frac { 13 } { 72 }$
D) $\frac { 1 } { 72 }$