Which One of the Following Is Not True About Stock

Which one of the following is not true about stock appreciation rights? (Stock Appreciation Rights)

A) Provide income to executives at the end of a designated period,much as with restricted stock options
B) Executives always have to exercise their stock rights to receive income
C) The company simply awards payment to executives based on the difference in stock price between the time the company granted the stock rights at fair market value to the end of the designated period,permitting the executives to keep the stock
D) Neither the employee nor employer pays taxes when stock appreciation rights are granted