Answer:
Unsure which of the options (aaaaaaa so sorry!), but I know that they do have to be an equal amount of degrees turned.
Explanation:
Two actors share a scene when they are both "open" to an equal degree allowing the audience to see them equally well. When two actors are not equally "open" and one receives greater emphasis than the other, the actor emphasized is said to take the scene. The other is said to give the scene.
