Final answer:
The director says 'Cut' to stop the action during a production, balancing the pace to keep the audience engaged.
Step-by-step explanation:
When a director wants the action on stage or in a film to stop, they say Cut. This command is essential for filmmakers and theater directors in order to control the pace and rhythm of a production. An effective director will find the balance between a pace that's neither too fast nor too slow, maintaining the audience's attention and ensuring the action feels organic and natural. The correct answer to the question is: b) Cut.