Find the Average of the List of Numbers $\frac { 2 } { 3 } , \frac { 4 } { 7 } , \text { and } \frac { 1 } { 9 }$

Multiple Choice

Find the average of the list of numbers.
- $\frac { 2 } { 3 } , \frac { 4 } { 7 } , \text { and } \frac { 1 } { 9 }$

A) $\frac { 85 } { 21 }$
B) $\frac { 85 } { 126 }$
C) $\frac { 85 } { 189 }$
D) $\frac { 85 } { 63 }$