need help with this one

A company just starting business made the following three inventory purchases in February: Feb. 1 200 units $1320 Feb. 10 350 units 2800 Feb. 28 90 units 820 $4940 On Feb 15, there were 250 units sold. The company uses a perpetual inventory system. Using the FIFO inventory cost formula, the amount allocated to cost of goods sold for the February 15 sale is O $1650. O $1720. O $4940. O $3220