Justin wants his new treehouse to blend in with the leaves, so he decides to paint it green. He mixes some white paint and green paint, but he only has enough to paint the roof. He knows he'll need a lot more paint for the walls, so he mixes triple the amount of white paint and triple the amount of green paint in his next batch. Which part of the treehouse will be a lighter shade of green?

A.the roof will be a lighter shade of green
B.the walls will be a lighter shade of green
C.neither. the roof and walls are the same shade of greeb