Sunspots Are Dark Splotches on the Sun

Sunspots are dark splotches on the Sun. Which statement is TRUE?

A) They are hotter than the surrounding areas of the Sun.
B) They are extremely cold objects, as cold as Pluto.
C) They are extremely hot, but cooler than the surrounding areas of the Sun.
D) They are solid bodies floating on the surface of the Sun.
E) They are associated with areas of very low magnetic fields.