Please help. Which is the correct answer

Marvin's Marbles has total fixed costs of $23,996. If the company's contribution margin is 20%, the income tax rate is 35% and the selling price of a box of Marbles is $20, how many boxes of Marbles would the company need to sell to produce a net income of $13,975? O A. 11,374 OB. 10,750 O C. 1,680 OD. 2,844