The word "unsurpassed" in the third paragraph is closest in meaning to______.

A．the performance required for a certain job
B．the behavior, knowledge, and skills expected of an employee
C．the training contents and methods
D．the costs and savings of the program

A．Socrates and his death.
B．Socrates beliefs.
C．Socrates, a wise man and his beliefs.
D．Socrates and his philosophy.