XYZ company currently sells 15,000 units a month for $50 each, has variable costs of $10 per unit, and fixed costs of $300,000. The company is considering increasing the price of its units to $60 per unit. If the price is changed, how many units will the company need to sell for profit to remain the same as before the price change? Select one: O a. 9,000 O b. 7,500 O c. 11,250 d. 12,000 O e. None of the given answers