Provide an Appropriate Response $.340340340$ to a Fraction by Writing It as the Infinite

Multiple Choice

Provide an appropriate response.
-Convert the decimal $.340340340$ . . to a fraction by writing it as the infinite series $\frac { 340 } { 1000 } + \frac { 340 } { 1000 ^ { 2 } } + \frac { 340 } { 1000 ^ { 3 } } + \ldots$

A) $0.339$
B) $0.34134134$
C) $\frac { 340 } { 999 }$
D) $0.341$