Which of the following is not necessary for a person to get his medical license

A．Authorize further training programs and exams.
B．reexamine physicians at a defined interval.
C．give further medical training to medical school graduates.
D．provide further training to specialists.

A．culture exercises an influence over social interrelationship.
B．courteous convention and individual interest are interrelated.
C．various virtues manifest themselves exclusively among friends.
D．social interrelationships equal the complex set of cultural conventions.