Sully Company provided the following information for last month. Production in units Direct materials cost Direct labor cost Overhead cost Sales commission per unit sold Price per unit sold Fixed selling and administrative expense 3,000 $7,000 $10,000 $9,600 $4 $29 $7,000 There were no beginning and ending inventories. What is operating income for Sully Company for last month? Oa. $27,400 Ob. $49,400 Oc. $41,400 Od. $34,600 Oe. $24,000