Which of the following is closest in meaning to "eligibility criteria" ( Line 5, Para. 4)

A．Private health care is the best solution to current problems.
B．Top-up and opt-out schemes give people basic health care for nothing.
C．Either top-up schemes o~ opt-out ones will be carried out in the near future.
D．Attention should be paid to voluntary health insurance and social insurance be emphasized in the future.

A．there has been much discussion about the alternative solutions to the funding problem in the newspapers
B．there have already been practice performances in the theatre of the funding problem
C．many of the alternative solutions have been carried out to cope with the funding problem
D．many of the alternative solutions have been turned down owing to the pressure from the mass media