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Problem 2-12 (Algo) Consider the three stocks in the following table. Pt represents price at time t, and Qt represents shares outstanding at time t Stock C splits two for one in the last period. Stock B c 140 135 270 145 290 290 145 130 280 QI 145 290 290 P2 145 130 145 145 290 580 Required: Calculate the first-period rates of return on the following indexes of the three stocks (t= O 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. a. Rate of return b. Rate of return