If the market risk premium were to increase, the value of common stocks, including Stuff Stores Company stock, $($holding all other factors constant$)$ should

a$.$ not change because the market risk premium does not affect stock values.

b$.$ increase to compensate an investor for increased riak.

c$.$ increase because of higher risk$-$free rates.

d$.$ decrease to compensate an investor for increased risk.

e$.$ decrease because of lower risk$-$free rates.