Natural Company plans to sell 40,000 boxes of teabags during January. The company has 6,000 boxes on hand on January 1 and requires 15% of the next months' sales on hand at the end of the month. Budgeted sales for the month of February and March, are 35,000 and 45,000 boxes, respectively. Budgeted production for January would be:
a) 40,000 boxes
b) 35,000 boxes
c) 39,250 boxes
d) 40,750 boxes