The stock of Business Adventures sells for $40 a share. Its likely dividend payout and end-of-year price depend on the state of the economy by the end of the year as follows. Boom State: Dividend is $2.00 and stock price is $50 Normal State: Dividend is $1.00 and stock price is $43 Recession: Dividend is $0.50 and stock price is $34 If all scenarios are equally likely, which of the following is closest to the standard deviation of the stock? 13.06% 17.03% 17.88% 18.74% 20.67% None of the above