Read the excerpt from act 1 of The Monsters Are Due on Maple Street.

37. PAN SHOT – ACROSS THE STREET DOWN THE ROW OF HOUSES 37.
Each is the same in general style, the front porch, the gliders, the rest of it. Then suddenly the CAMERA STOPS on the last house in the line. There's a spot light set up on the porch and even in the daylight we can see it shining.

Which element of drama is highlighted in this stage direction?

character
theme
setting
plot