Why must the reader of a play sit in the metaphorical "director's chair"? a. to be able to appropriately stage a performance of the play b. to better understand the stage direction mentioned in the play c. to understand the tempo and tone of the characters d. to imagine the many details that aren't included in the dialogue

D. To imagine the many details that aren't included in the dialogue

Many things that make plays interesting and dynamic aren't included in the dialogue or even the stage directions. Sitting in that metaphorical director's chair helps the reader visualize what could be happening on stage to fill in all the gaps not described on the pages.