Within One Shot of the Birth of a Nation (1915)

Within one shot of The Birth of a Nation (1915) , D. W. Griffith establishes a view of a Civil War battle, turns the camera toward a woman and small children on a wagon, and then turns back to the battle in order to

A) create a longer take.
B) save production costs by reducing camera setups.
C) exploit the relationship between the lens and the camera.
D) enhance the perceived camera angle.
E) show the relationship between the horror of the battle and the misery it creates for civilians.