Which one of the following statements correctly describes the construction of a planetary gear type differential?

Which one of the following statements correctly describes the construction of a planetary gear type differential?

a) The six planetary pinions rotate in constant mesh with the internal gears.

b) One drive shaft is splined to the central gear and the other to the planetary gear.

c) Each planetary pinion gear meshes with both the central gear and the internal gear.

d) The internal gear is fixed to the planetary gear.

Automobile Engineering Practice Set-8