Please answer 5C thank you

5. Below is actual price and dividend data for three companies for each of seven months. A C B Dividend Dividend Dividend Time 1 Price 333 2 368 Price 57 3/4 59 7/8 59 3/8 55 1/2 56 1/4 3 0.725 1.35 0.40 368 1/2 382 1/4 Price 106 3/4 108 1/4 124 122 1/4 135 1/2 141 3/4 165 3/4 4 5 386 6 59 0.725 1.35 0.42 397 3/4 392 7 60 1/4 a. Compute the rate of return for each company for each month b. Compute the average rate of return for each company c. Compute the standard deviation of the rate of return for each company A B C Time Price Dividend Price Dividend Dividend 1 333 Price 106 3/4 108 1/4 124 2. 3 0.725 1.35 0.4 4 57 3/4 59 7/8 59 3/8 55 1/2 56 1/4 59 60 1/4 368 368 1/2 382 1/4 386 397 3/4 392 5 122 1/4 135 1/2 141 3/4 165 3/4 6 0.725 1.35 0.42 7