Two Uniform Solid Balls, One of Radius R and Mass

Multiple Choice

Two uniform solid balls, one of radius R and mass M, the other of radius 2R and mass 8M, roll down a high incline. They start together from rest at the top of the incline. Which one will reach the
Bottom of the incline first?

A) The large sphere arrives first.
B) The small sphere arrives first.
C) Both reach the bottom at the same time.