[单选题]
Two Styrofoam balls, op( c f5oh b39mnslc8m6vfybtnu/ u, 3.fav ti3p:4)4i3u zm xkk radii R and 2R, are released simultaneously from a tall tower. Which will reach the ground firsvkzmk3)t: xpiu4 3ia4t?
A. Both will reach the ground simultaneously.
B. the larger one
C. the smaller one
D. The result will depend on the atmospheric pressure.