Please show calculations so I can learn, and if possible please explain why the answer in C is a "Gain or Loss" and not just "Gain" or "Loss"

Calculation of Gain or Loss (LO 4.3) John receives 200 shares of Chevron stock as a gift from his mother. The mother purchased the stock for $10,000 eight years ago and it is now worth $8,000 at the date of the gift. a. If John sells the stock for $11,200, calculate the amount of the realized gain or loss on the sale. $ Feedback V Check My Work Correct b. If John sells the stock for $7,500, calculate the amount of the realized gain or loss. $x Feedback Check My Work Partially correct c. If John sells the stock for $9,000, calculate the amount of the realized gain or loss. \$ X Feedback V Check My Work Partially correct Feedback V Check My Work Partially correct