What Is the Sum Of $\frac { 3 } { 4 }$

Multiple Choice

What is the sum of $\frac { 3 } { 4 }$ and $\frac { 7 } { 8 }$ ?

A) $\frac { 10 } { 48 }$
B) $\frac { 10 } { 12 }$
C) $\frac { 21 } { 4 }$
D) 1 $\frac { 5 } { 8 }$