The Private Market Would Not Supply the Optimal Amount of National

Multiple Choice

The private market would not supply the optimal amount of national defence because:

A) private citizens don't value national defence enough to cover the cost of private provision
B) no-one has the right to attach a price to it and profit from its use
C) private suppliers are unable to produce national defence
D) the government would quickly take advantage of the profit opportunity and undersell to the private suppliers