How should routine replies and positive replies close?

Routine replies and positive replies should close with information highlighting a benefit to the audience.

The answer is d. The lines were meant to be read aloud; doing so might aid understanding.
Shakespear's plays are meant to be performed. Thus, reading out loud is the best way to understand them. Reading the lines as actors are supposed to do will help you understand the meaning of the lines as well as the whole play.