A company completed the following transactions in the order given in its first year of operations: Transaction Units Unit Costs Purchase 300 $4.00 Purchase 200 4.20 Sales (@ $8.00) 280 Purchase 400 4.40 Sales (@ $8.00) 360 Using the weighted-average inventory cost method (rounding each calculation to the nearest cent) the gross margin would be: Multiple Choice

a-$2,376.00

b-$2,422.84

c-$2,463.78

d-$2,433.20