Jane is considering investing in three different shares or creating three distinct two-share portfolios. Jane considers herself to be a rather conservative investor. She is able to obtain forecast returns for the three securities for the year 2008 to 2014. The data are as follows: Year share A Share B Share C 2008 10% 10% 12% 2009 13% 11% 14% 2010 15% 8% 10% 2011 14% 12% 11% 2012 16% 10% 9% 2013 14% 15% 9% 2014 12% 15% 10% In any of the possible two-share portfolios, the weight of each share in the portfolio will be 50%. The three possible portfolio combinations are AB, AC and BC. Calculate the standard deviations for portfolios AB, AC and BC