Earth Is Generally Hotter at the Equator Because

Earth is generally hotter at the equator because:

A) the sun shines over the equator evenly through the year, rather than seasonally.
B) Earth's rotation on a tilted axis increases seasonality.
C) the natural oval shape of Earth places the equator nearer the sun than the poles.
D) the Earth receives the most direct sunlight over the course of the year at the equator.
E) Earth's rotation on a tilted axis creates an atmospheric drag at the equator, warming the air.