On January 1, a company had outstanding incentive stock options exercisable to purchase 18,000 of its common shares for $7 each. The price of the company's common stock averaged $9 per share during the year and closed at $10 on December 31. When calculating diluted earnings per share for the year, the stock options will increase the weighted average number of shares outstanding by: O 14,000 shares O 4,000 shares O 5,400 shares O Zero shares