fast solv plz

Company X is considering replacing the old projectors in meeting rooms with new ones. The old projectors originally costed Company X $100,000. They require total annual maintenance cost $150,000. The new projectors are expected to cost Company Xa total of $500,000. No additional maintenance is expected for the new projectors. If Company X decided to replace the old projectors they expect to be able to sell the old projectors for $50,000. If Company X decided to replace the old projectors, the sunk cost is ($): a. $100,000 Ob. $460,000 Oc. $50,000 Od $40,000 Oe. $500,000