FedEx Corporation is the world's leading express-distribution company. In addition to the world's largest fleet of all-cargo aircraft, the company has more than 56,700 ground vehicles that pick up and deliver packages. Assume that FedEx sold a delivery truck for $16,000. FedEx had originally purchased the truck for $28,000, and had recorded depreciation for three years. Required: 1. Calculate the amount of gain or loss on disposal, assuming that Accumulated Depreciation was: (a) $12,000, (b) $10,000, and (c) $15,000. (Select "None" if there is no Gain or Loss.) Gain/Loss Amount