What's it called when VALUE gets lighter and lighter to show implied space/depth?

Hint- This is why mountains look lighter in value and bluer in hue the farther away they are!

Linear Perspective
Two-Point Perspective
One-Point Perspective
Atmospheric Perspective*

D is correct im pretty sure

D sounds right, yes.

The correct answer is Atmospheric Perspective. It refers to the technique in visual art where objects that are farther away appear to get lighter in value and bluer in hue. This effect is produced due to the way that atmospheric conditions affect the perception of depth and distance. Understanding atmospheric perspective can help artists represent space and depth in their artwork more realistically.