On a Single Roll of a Pair of Dice, What $\frac { 1 } { 30 }$

Multiple Choice

On a single roll of a pair of dice, what is the probability that the sum is 6, given that at least one die came up 1?

A) $\frac { 1 } { 30 }$
B) $\frac { 1 } { 5 }$
C) $\frac { 1 } { 36 }$
D) $\frac { 1 } { 6 }$
E) $\frac { 1 } { 12 }$