Winds blow in curved loops because of earth's
atmosphere
shape
rotation
gravity

The correct option is "Rotation"

The movement of terrestrial rotation exerts a three-dimensional effect on the bodies that move on the surface, especially liquids (rivers, seas, oceans, lakes) and gaseous in the atmosphere, such as surface wind, convection, subsidence , etc. They also exert that effect on some solid bodies, such as oceanic, fluvial, lacustrine or terrestrial ice.

i believe your answer is d)