Wheeler Corporation had retained earnings of December 31, 2008 of $ 12 million. During 2009, Wheeler's net income was $ 4 million. The retained earnings balance at the end of 2009 was equal to $ 13 million. Therefore, _________
a) Wheeler paid a dividend in 2008 of $ 3 million
b) Wheeler paid a dividend in 2008 of $ 5 million
c) Wheeler sold common stock during 2008 for $ 3 million
d) Wheeler purchased treasury stock in 2008 for $ 3 million