On January $1,2020,$ Crane Company granted Andy Allen, an employee, an option to buy $2020$ shares of Crane Co$.$ stock for $$25$ per share, the option exercisable for $5$ years from date of grant. Using a fair value option pricing model, total compensation expense is determined to be $$21600.$ Allen exercised his option on September $1,2020,$ and sold his $2020$ shares on December $1,2020.$ Quoted market prices of Crane Co$.$ stock during. $2020$ were

January $1,$$$25$ per share

September $1,$$$30$ per share

December $1$ $$34$ per share

The service period is for three years beginning January $1,2020.$ As a result of the option granted to Allen, using the fair value method, Crane should recognize compensation expense for $2020$ on its books in the amount of

$$7200.$

$$4320.$

$$15000.$

$$21600.$