Stoke's law states that the velocity at which a grain settles out of suspension, the other factors
remaining constant, is dependent upon
(A) Shape of grain
(B) Weight of grain
(C) Size of grain
(D) Shape, size and weight of grain
remaining constant, is dependent upon
(A) Shape of grain
(B) Weight of grain
(C) Size of grain
(D) Shape, size and weight of grain