Solve the Problem $\frac { 1 } { 6 }$ B) $\frac { 1 } { 3 }$

Multiple Choice

Solve the problem.
-A marble is taken out of a bag containing 90 marbles: 20 red, 15 blue, 25 green, and 30 orange. Find the probability: P(a blue marble is chosen)

A) $\frac { 1 } { 6 }$
B) $\frac { 1 } { 3 }$
C) $\frac { 2 } { 9 }$
D) $\frac { 13 } { 18 }$