Calculate tracking error for portfolio A and B against benchmark index portfolio. period Port A Index Port B Index Q1 1.2% 2.5% 1.5% 2.5% Q2 3.6% 2.5% 3.8% 2.5% 2.8% 2.5% 2.0% 2.5% 2.0% 2.5% 3.4% 2.5%