Shares used in computing earnings per common share

Question

The given information is available for a corporation:

January 1, 2011 Shares outstanding                               1,250,000
April 1, 2011 Shares issued                                              200,000
July 1, 2011 Treasury shares purchased                              75,000
October 1, 2011 Shares issued in a 100% stock dividend  1,375,000

The number of shares to be used in computing earnings per common share for 2011 is:

a. 2,825,500
b. 2,737,500
c. 2,725,000
d. 1,706,250