Consider the three stocks in the following table. P: represents price at time t, and Q represents shares outstanding at time t Stock C splits two for one in the last period. A 140 150 150 150 150 150 B 135 300 130 300 130 300 270 300 275 300 140 600 Calculate the first-period rates of return on the following indexes of the three stocks (t-0 to t-1): (Do not round intermediate calculations. Round your answers to 2 decimal places.) o. A market-value-weighted index Rate of retun b. An equally weighted index Rate of return