86. A stock had the following returns over the last five years: -8%, 4%, 17% and -12%. What is the respective geometric mean and arithmetic mean for this stock? -0.25; 0.37% -0.37%; 0.25% -0.25%; 0.25% -0.37%; -0.25% 1p 87. An investor has a $12,000 portfolio consisting of $7,000 in stock A with an expected return of