Calculate the durations and volatilities of securities A, B, and C. Their cash flows are shown below. The interest rate is 10%. (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 75 75 110 years B 55 55 190 years 45 45 180 years