Use the excerpt to answer the question.
Foley artists use props to create sound effects for movies. Their principal job is to immerse viewers in what they see by including the dimension of sound to add to the experience. Foley artists rarely capture sounds during live taping that are included in the edited version you view. But, just how is this accomplished? How can the tiptoes of a child or the boom of thunder be recreated? A Foley artist sees the opportunity to use an everyday object to capture the sound: swishing a feather duster across a sheet of paper brings thoughts of a ballerina dancing across center stage, and waving a large piece of heavy aluminum evokes thoughts of a thunderstorm!
Which of the following is a central idea of this paragraph?
A. Foley artists edit films before viewers see them.
B.Everyday objects are often used to create effects.
C. Foley artists create sound effects for movies.
D. Sound is usually added to movies after they are filmed.