The Gain or Loss on the Disposal of Equipment Is

The gain or loss on the disposal of equipment is determined by

A) adding the book value of the old equipment to the cost of the new equipment.
B) adding the disposal value and the book value of the old equipment.
C) subtracting the book value from the disposal value of the old equipment.
D) subtracting the book value of the old equipment from the cost of the new equipment.