In many countries, education is either wholly provided by the government or is heavily subsidized. How would an economist explain this ? A. Since education has a spillover benefit, private markets will under provide for it. B. Education is a pure public good and those who do not pay cannot be excluded from it. C. The only way to provide education is through a government-sponsored system. D. Since education has a spillover cost, private markets will over provide for it. E. Individuals will not purchase education because they do not benefit from it.