On January 1, 2020, Korsak, Inc. established a stock appreciation rights plan for its executives. It entitled them to receive cash at any time during the next four years for the difference between the market price of its common stock and a pre-established price of $20 on 120,000 SARs. Current market prices of the stock are as follows:

January 1, 2020 $35 per share

December 31, 2020 38 per share

December 31, 2021 30 per share

December 31, 2022 33 per share

Compensation expense relating to the plan is to be recorded over a four-year period beginning January 1, 2020. On December 31, 2022, 50,000 SARs are exercised by executives. What amount of compensation expense should Korsak recognize for the year ended December 31, 2022?

A $312,000

B $780,000

C $1,140,000

D $2,340,000