A. Total asset turnover is calculated as sales divided by total assets. When the options are exercised the company will receive some amount of cash. This will increase total assets and decrease the total asset turnover.
B. When a stock option is exercised there are more shares outstanding. This will decrease the ownership interest of existing shareholders because the number of shares that they own is now a smaller percentage of the larger total number of shares outstanding.
C. When a stock option is exercised there are more shares outstanding. This will decrease the basic earning per share because the same amount of income is being divided between a larger numbers of shares.