Consider the following returns: Year End 2004 2005 2006 2007 2008 2009 Stock X Realized Return 20.1% 72.7% - 25.7% Stock Y Realized Return - 14.6% 4.3% - 58.1% 56.9% 71.1% 27.9% 6.7% 17.3% - 5.1% 17.9% 0.9% - 11.3% The covariance between Stock X's and Stock Y's returns is closest to: A. 0.10 OB. 0.12 OC. 0.69 OD. 0.29 Stock Z Realized Return 0.2% -3.2% - 27.0%