Consider the three stocks in the following table. Prepresents price at time t, and outstanding at time t. Stock C splits two-for-one in the last period. represents shares 00 97 1 00 57 200 114200 PL 102 100 52200 124 200 102 52 100 200 400 Calculate the first-period rates of return on the following Indexes of the three stocks: (Do not round Intermediate calculations. Round your answers to 2 decimal places.) a. A market value-weighted index Rate of return b. An equally weighted index Rate of return