The table below shows the active return for seven periods for a bond portfolio. Calculate the portfolio's tracing risk for the seven period time frame (standard deviation of active returns. Portfolio Banchmark Active Period Return Return Return 13.90% 2.10% 7.90% 3.30% 2.50% 3.10% 5.40% 13.60% 8.00% 8.20% 3.40% 2.40% 3.20% 5.10% 4