34. According to the passage, which of the following is true about the cost of private schooling in Britain?
(A) The cost of private schooling in Britain has stayed the same since the 1980s.
(B) The cost of private schooling in Britain is equivalent to the median household income.
(C) The cost of private schooling in Britain has tripled since the 1980s and is about half the median household income.
(D) The cost of private schooling in Britain is the highest in the world and more than three times the median household income.