Calculate the durations and volatilities of securities A, B, and C. Their cash flows are shown below. The interest rate is 6%. (Do not round intermediate calculations. Round "Duration" to 4 decimal places and "Volatility" to 2 decimal places.) Period 1 Period 2 Period 3 Duration Volatility A 85 85 130 years B 65 65 210 years 55 55 200 years