Differential Rotation of the Sun Is

Differential rotation of the Sun is

A) heating in the chromosphere and corona that makes them hotter than the photosphere.
B) the magnetic dynamo inside the Sun.
C) the equatorial regions of the Sun rotating more rapidly than the polar regions.
D) the origin (and subsequent disappearance of) Sunspots first near the poles then closer to the Sun's equator as the Sunspot cycle progresses.
E) the rotation of the Sun's southern and northern hemispheres in opposite directions.