Consider the following annual closing prices of stock A and stock B. A B D 1 Stock A Prices (in $ Date Year Stock B Prices (in $) 584 103 B Year 102 2 3 424 4 Year 363 5 Year 191 486 6 Year 73 351 Year 6 97 502 18 Year 7 56 337 9 Year 8 102 402 10 Year 9 110 349 11 Year le 105 423 12 Year $14 15 Year 12 &B 435 14 Year 13 100 449 15 Year 130 466 16 Year 15 99 466 17 If you had invested 42 percent of your total investment on stock A and 58 percent on stock B at the beginning of the period, what would be the historical standard deviation of the portfolio consisting of these two stocks? 30.31 % 24.25% 6.06 % O 18.18 %