Perform the Indicated Operation $\frac { 1 } { 6 } - \frac { 1 } { 13 }$

Multiple Choice

Perform the indicated operation. Where possible, reduce the answer to its lowest terms.
- $\frac { 1 } { 6 } - \frac { 1 } { 13 }$

A) $\frac { 7 } { 78 }$
B) $\frac { 1 } { 78 }$
C) $\frac { 7 } { 6 }$
D) $\frac { 1 } { 6 }$