An artist mixes 2/5 ounce of blue paint with 1/15 ounce of green paint. Using the same ratio, how many ounces of green paint should she mix with 3 ounces of blue paint?
A. 2/75 ounce
B. 2/25 ounce
C. 1/3 ounce
D. 1/2 ounce