Which statement about sunspots is true? A. Sunspots are seen in the chromosphere. B. Sunspots are related to the Sun's magnetism. C. Sunspots are seen on the hottest part of the Sun. D. Sunspots do not help us determine the Sun's rotational period.
The core, or middle, of the Sun is the hottest part. Hot gasses bubble up from the core to the surface of the Sun. When the gasses burn, heat and light are produced.