Add Do Not Use a Number Line Except as a Check

Multiple Choice

Add. Do not use a number line except as a check.
- $- \frac { 7 } { 8 } + \left( - \frac { 3 } { 5 } \right)$

A) $- \frac { 59 } { 13 }$
B) $\frac { 11 } { 40 }$
C) $- \frac { 59 } { 40 }$
D) $- \frac { 10 } { 13 }$