Answer:
The correct answer is C.
Step-by-step explanation:
Sunspots increase and decrease through an average cycle of eleven years.
There is a debate of how much this sunspot would affect the earth`s temperature, the earth`s climate is sensitive to very weak changes in the Sun`s energy. During maximum sunspot activity, there`s a very slight increase in the energy output of the sun. Ultraviolet radiation increases during high sunspot activity, and this can have a large effect on Earth`s atmosphere.
I hope it helps!