If i´m incorrect please correct me, Thank you!
The area that appears dark on the surface of the Sun is called sunspots. These are storms on the Sun's surface.
Sunspots are caused due to disturbance in Sun's magnetic field heading up to the photo-sphere.
Sunspots can last from few days to few months and eventually decay. They can expand or contract as they move across the Sun's surface.
Thus, the correct option is B.
For more information about sunspots, visit:
https://brainly.com/question/13969679
