The best and most correct answer among the choices provided by your question is the fourth option or letter D. Trade winds blow towards the equator because the Equator receives the most heat energy.
The surface air that flows from these subtropical high-pressure belts toward the Equator is deflected toward the west in both hemispheres by the Coriolis effect. These winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere.
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