Which of the following statements concerning MRP systems (MRP I and MRP II) of the 1970s/80s is inaccurate?

		End items of a MPS are exploded into component part requirements via BOMs
		MRPII could optimize the profit and on-time performance subject to constraints
		Initial MRP-focused on material only, produced a schedule of shop order manufacturing dates (and purchase order release dates)
		MRP systems are driven by a MPS and show quantity and timing of end-item production
		MRP II scope was expanded to address machine and labor resources