A Steel Sphere of Mass M Has a Large Spherical

Multiple Choice

A steel sphere of mass M has a large spherical cavity inside.A second solid steel sphere has mass 4M,but has the same outer radius as the first sphere.If the terminal velocity of the first sphere is v,what would be the terminal velocity of the second sphere?

A) It would also be v since the geometry is the same and the density of steel is the same.
B) It would be v.
C) It would be 2v.
D) It would be 4v.