Security analyst Jo identified three potential securities A, B and C for investment. The market portfolio M provides 12% pa return and risk-free return (rf) is 4% pa. In the following chart Jo draws the securities market line and identifies the relative positions of these three securities. Using the data given on the chart below identify the security which will give you maximum abnormal return (alpha). Explain your answer with reasons. 

 

Expected Return (%) 20 18 16 14 12 10 6 0 rf 0.5 A Security Market Line 1 B M 1.5 2 C 2.5