If the variability of the returns on large$-$company stocks were to increase over the long$-$term, you would expect which of the

following to occur as a result?

L decrease in the average rate of return

Il increase in the risk premium

III. increase in the $68$ percent probability range of the frequency distribution of returns

IV$.$ decrease in the standard deviation

Multiple Choice

IV only

II and III only?

I and III only

II and IV only