Answer:
Axis of Action.
Step-by-step explanation:
Axis of action is a tool used in film making to create a spatial relationship between all objects of the scene and the characters. It is also called a 180-degree line.
Mostly camera is placed on this axis of line and is not permitted to move. There can be a shift in the axis of action when the character makes the movement or shifts. In the cinematography line, a camera is never allowed to cross this axis of action because in doing so it can distract the audience.
So, the correct answer is the axis of action.