Mazzitelli Company manufactures boxes. To manufacture a box, it takes $20$ units of wood and $1$ unit of plastic. Scheduled production of boxes for the next two months is $1,050$ and $1,250$ boxes, respectively. Beginning inventory is $8,000$ units of wood and $60$ units of plastic. The ending inventory of wood is planned to decrease $1,000$ units each of the next two months, and the plastic inventory is expected to increase $10$ units each of the next two months.

Based on this information, the number of units of wood that Mazzitelli needs to purchase during the first month is:

a$.1,000$ units

b$.20,000$ units

c$.2,000$ units

d$.9,000$ units