Read the paragraph.

in conclusion, the work of foley artists is only one step in the overall filmmaking process. by adding the appropriate sound effects, foley artists create a level of realism that the audience embrace the premise of the film, whether it is some crazy alien adventure or something based on everyday life.

which phrase should be revised to match the objective tone and formal style of the rest of the paragraph?
a. work of foley artists is only one step
b. foley artists create a level of realism
c. it is some crazy alien adventure
d. something based on everyday life