Consider the three stocks in the following table, pe represents price at time t, and t represents shares outstanding at time t. Stock C splits two for one in the last period. Required: Ralculote the first-period rates of return on the following indexes of the three stocks (t=0 to t=1) : Note: Do not round intermediate calculations. Round your answers to 2 decimal places. a. A market-value-weighted index. b. An equally weighted index