A. The spindle will move at a rate of 6 inches per minute to a point where z = 1.00 in.
B. The spindle will move at a rate of 6 inches per minute for a distance of 1.00 in.
C. The spindle will move at a rate of 6 millimeters per minute to a point where z = 1.00 mm
D. The spindle will move at a rate of 6 millimeters per minute for a distance of 1.00 mm