Check my w 2021, the company issued 480,000 executive stock options permitting executives to buy 480,000 shares of Pastner stock for $43 per share. One-fourth of the options vest in each of the next four years beginning at December 31, 2021 (graded vesting). Pastner elects to separate the total award into four groups (or tranches) according to the year in which they vest and measures the compensation cost for each vesting date as a separate award. The fair value of each tranche is estimated at January 1, 2021, as follows: Vesting Date. Fair Value Amount Vesting per Option -# Dec. 31, 2021 25% $4.40 Dec. 31, 2022 25% $4.80 Dec. 31, 2023 Dec. 31, 2024 25% $5.40 25% $6.40 Required: 1. Determine the compensation expense related to the options to be recorded each year 2021-2024, assuming Pastner allocates the compensation cost for each of the four groups (tranches) separately. 2. Determine the compensation expense related to the options to be recorded each year 2021-2024, assuming Pastner uses the straight-line method to allocate the total compensation cost.