Find the Conditional Probability $\frac { 1 } { 3 }$

Multiple Choice

Find the conditional probability.
-If two fair dice are rolled, find the probability that the sum is 6 given that the roll is a "double".

A) $\frac { 1 } { 3 }$
B) $\frac { 1 } { 4 }$
C) $\frac { 1 } { 5 }$
D) $\frac { 1 } { 6 }$