The MPS Is a Vital Link the Production Planning System

The MPS is a vital link the production planning system because it: I. Keeps priorities valid.
II) Forms the basis for determining the capacity needed.
III) Is input to the material requirements plan.
IV) Is input to the production plan.

A) I, II, III and IV only
B) I, II and III only
C) I, II and IV only
D) II, IIII and IV only
E) I, II, III, and IV