Express the Ratio in Lowest Terms $7 \frac { 8 } { 9 } : 9$

Multiple Choice

Express the ratio in lowest terms. $7 \frac { 8 } { 9 } : 9$

A) $\frac { 65 } { 78 }$
B) $\frac { 65 } { 75 }$
C) $\frac { 69 } { 79 }$
D) $\frac { 75 } { 85 }$
E) $\frac { 71 } { 81 }$