Sarah's portfolio has an expected annual return at $8\%,$ with an annual standard deviation at $12\%.$ If her investment returns are normally distributed, then in an

About a $68\%$ chance that the actual return will fall within $-20\%$ and $20\%$

A $50\%$ chance that the actual return will be greater than $8\%$

About a $68\%$ chance that the actual return will fall within $4\%$ and $20\%$

About a $95\%$ chance that the actual return will fall within $-4\%$ and $28\%.$