multiple choice question I just want to answer a, b, c, d Pllz Faaast help

If the return on the portfolio Ky is equal to 0.16 if stock goes up and 0,04 if stock goes down, then the variance on the portfolio Ky is equal to 0.16 AO 0.0480 0.64co 0.08 E DA o 13 14 If the return on the portfolio Ky is equal to 17.5 % if stock goes up or -7.5% if stock goes down then, the standard deviation on the portfolio Ky is equal to 4760 8% 10% EDSA If the return on the portfolio Ky is equal to 0.16 if stock goes up and 0,04 if stock goes down, then the variance on the portfolio Ky is equal to 0.16 AO 0.0480 0.64co 0.08 E DA o 13 14 If the return on the portfolio Ky is equal to 17.5 % if stock goes up or -7.5% if stock goes down then, the standard deviation on the portfolio Ky is equal to 4760 8% 10% EDSA