Assume that each day ten thousand children watch Sesame Street on public television and that watching Sesame Street generates a benefit of $100 per child per year. Once a year, public television stations hold a pledge drive asking viewers to make voluntary contributions in order to keep the programming available to everyone. If public television stations collect less than $100 per child during the pledge drive, then this is evidence:Select one:a. that the government should not subsidize public television. b. that parents do not care about their children. c. of the free-rider problem. d. that head taxes are regressive.