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．to take care of children only
B．to catch on with fashion
C．to find a handsome male model for their children to imitate
D．to set a good example for their children to follow