单项选择题

SECTION 2
Directions: In each of the following questions, a related pair of words or phrases is followed by five lettered pairs of words or phrases. Select the lettered pair that best expresses a relationship similar to that expressed in the original pair.
ROLE: UNDERSTUDY::
A.chairman : general
B.lawyer : magistrate
C.position : benchwarmer
D.physician : sufferer
E.employer : employee

A.ROLE:
B.chairman
C.lawyer
D.position
E.physician
F.employer