Answer: B. orographic uplift
Explanation:-
When air is collided by mountains, it cannot passes through them.
Since the air rises up the mountain, the air cools down as it rises .
If air cools to its saturation point, the water vapor condenses to form clouds.
These clouds are develop in response to the lifting forced by the topography the earth. Therefore, they are called called orographic clouds.
Hence, the called orographic clouds, which is orographic uplift.