19. 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. (LO 2-2) a. Calculate the rate of return on a priceweighted index of the three stocks for the first period ( t=0 to t=1 ). b. What must happen to the divisor for the price-weighted index in year 2? c. Calculate the rate of return of the priceweighted index for the second period ( t=1