Answer: B. feedback that is specific and objective
Explanation: Specific and objective feedback provides detailed observations and suggestions about the different elements of the play, such as the plot, characters, dialogue, and staging and is the most useful for the playwright. This type of feedback helps the writer understand what is working well and what could be improved.
This type of feedback is valuable because it helps the playwright identify areas for improvement and make changes that will benefit the overall quality of the play. It also allows the writer to see the play from different a perspective and gain insights that they may not have thought about before.