Find the Indicated Probability $\frac { 3 } { 8 }$

Find the indicated probability. Round your answer to 6 decimal places when necessary.
-Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability that both marbles are white.

A) $\frac { 3 } { 8 }$
B) $\frac { 3 } { 28 }$
C) $\frac { 3 } { 32 }$
D) $\frac { 9 } { 56 }$