Final answer:
Statement B is correct as the Sun exhibits differential rotation, rotating faster at its equator with a period of approximately 25 days in comparison to the poles.
Step-by-step explanation:
The correct statement that describes the motion of the Sun is B. The sun rotates faster at its equator. This is known as differential rotation. Unlike a solid body, the Sun is a gaseous object and does not rotate uniformly. At the equator, the Sun's rotation period is about 25 days, but it increases with latitude, reaching up to about 36 days at a latitude of 80°. Watching the motion of sunspots across the Sun's disk is a traditional method used to determine this rotational behavior.