Correct Answer: D
Explanation:
(D) An actor is one member of a cast, which is the group of people who participate in a theater performance. In the same way, a musician is one member of an orchestra, the group which puts on a musical concert.
Protagonist: a person who plays a leading or active
part
Sculptor: a person who models, carves, or
otherwise fashions figures or forms of clay,
stone, metal, wood, etc.; artist who creates
three-dimensional representations
Script: a written document; original manuscript
Orchestra: in modern theaters, the space in front of
and below the stage, where the
musicians sit: in full orchestra pit
Composer: a person who composes, esp. one
who composes music