Production and sales estimates for April for Crane Co. are as follows: Estimated inventory (units), April 1 19,000 Desired inventory (units), April 30 18,000 Expected sales volume (units): Territory A 3,000 Territory B 4,750 Territory C 4,250 Unit sales price $20 The number of units expected to be manufactured in April is a.11,000 units b.13,000 units c.9,500 units d.12,000 units