Add or Subtract as Indicated $\frac { 5 } { 8 } + \frac { 4 } { 7 }$

Multiple Choice

Add or subtract as indicated. Write the answer in lowest terms.
- $\frac { 5 } { 8 } + \frac { 4 } { 7 }$

A) $\frac { 9 } { 56 }$
B) $\frac { 67 } { 56 }$
C) $\frac { 3 } { 5 }$
D) $\frac { 17 } { 14 }$