Consider the three stocks in the following table. Pt represents price at time t, and Qt represents shares outstanding at time t. a. Calculate the rate of return on a price-weighted index of the three stocks for the first period ( t=0 to t=1). (You can assume your own divisor for calculating returns.) b. Calculate the rate of return on a value-weighted index of the three stocks for the second period (t=1 to t=2)