Because national defense is potentially subject to free riding, a private sector market for national defense would lead to
◦ the efficient amount of national defense if there is free riding.
◦ more than the efficient amount being produced if there is free riding.
◦ less than the efficient amount being produced if there is free riding.
◦ less than the efficient amount being produced if there is not free riding.
◦ None of these answers is correct.