Express the Number as the Ratio of Two Integers $0.3131313 \ldots$

Multiple Choice

Express the number as the ratio of two integers.
- $0.3131313 \ldots$

A) $\frac { 31 } { 99 }$
B) $\frac { 62 } { 99 }$
C) $\frac { 310 } { 99 }$
D) $\frac { 31 } { 33 }$