Why Is the Market's Allocation of Products Preferable to That

Why is the market's allocation of products preferable to that of either the producers or of the government?

A) Because it ensures that even the poor will be able to afford to buy everything.
B) Because it ensures that only people who really need certain products will be able to afford them.
C) Because it ensures that both demand and supply factors are taken into consideration.
D) Because it will mean that scarce resources are available at low prices.
E) Because it ensures that the income distribution of the population is ignored.