Using the table given below,calculate the number of shares arising from employee stock options that wouldbe included in the fully diluted weighted averages shares outstandingcalculation, rounded to the nearest integer. Assume that the company’s share price is $12:

Outstanding	Exercisable	Strike price
1,450	1,450	$9.00
3,780	3,250	$11.50
2,700	1,090	$14.00

                        A 690

                        B 640

                        C 560

                        D 520

                        E 500

这个是个什么思路？感觉没答案啊啊