Given the data from the following table, $,$ and the calculated average returns and standard deviations in the following table, $,$

a$.$ Which asset was riskiest?

b$.$ Compare the standard deviations of the assets in the $1990$s to their standard deviations in the Great Depression $($the $1930$s$).$ Which had the greatest difference between the two periods?

c$.$ From just looking at the data from the $1990$s$,$ what would you conclude about small stocks?

a$.$ Over the period shown in the table, which asset was riskiest?

The riskiest asset class was $].($Select from the drop$-$down menu.$)$