Concept:Stage directions are the written instructions in a play that guide the actors' actions.Explanation:In drama, stage directions are notes in the script that tell the actor what to do.They indicate movement, position, tone of voice, gestures, and even lighting or sound effects.Dialogue is the speech exchanged between characters, while cast refers to the performers and scenes are parts of the action.Only stage directions directly instruct the actor on how to move or behave.Answer:B. stage directions