Which of the following are performance measures of delivery at the shop floor level? 1) Standard cost variances. 2) Accident reports. 3) Schedule adherence. 4) Number of good units completed.

	a.	1 and 2.
	b.	2 and 3.
	c.	1 and 3.
	d.	2 and 4.
	e.	3 and 4.