Help please!

The Cardinal Company had a finished goods inventory of 55,000 units on January 1. Its projected sales for the next four months were: January - 200,000 units; February - 180,000 units; March - 210,000 units; and April - 230,000 units. The Cardinal Company wishes to maintain a desired ending finished goods inventory of 20% of the following months sales. What is the budgeted units of production for February? a. 181,000 b. 186,000 c. 222,000 d. 174,000