the following information has been obtained from the Massena Corp. 100,000 shares of common stock were outstanding on January 1, 2015. 30,000 shares of comon stock were issued on March 1, 2015. A 2 for 1 stock split was declared on April 1, 2015 The 2 for 1 stock split was distributed on May 1, 2015. 10,000 shares of common stock were purchased on October 1, 2015

What is the weighted average number of shares to be used in the calculation of basic earnings per share for 2015? ( is it 247,500, 216,250, 230,833, or 209,167?)