You are choosing between these four investments and you want to be​ 95% certain that you do not lose more than 8.00 % on your investment. which investments could you​ choose? small stocks ​s&p 500 corporate bonds ​t-bills average return ​18.37% ​11.84% ​6.47% ​3.46% standard deviation of returns ​38.79% ​20.01% ​6.98% ​3.14% ​(select the best choice​ below.)