Answer:
a. 11,000 units
Explanation:
Particulars                                Amount
Expected Sales (units) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 12,000 [3000+4750+4250]
Add: Ending inventory                      18,000
Less; Beginning inventory                    19,000
Number of units expected to be manufactured 11,000