What are sunspots?

Question

A they are known as freckles on the Sun

b patches on the Sun's surface that look dark because they are hotter

c blasts of heat coming from the Sun

d patches on the Sun's surface that look dark because they are cooler

Answer 1

The correct answer is:

d patches on the Sun's surface that look dark because they are cooler.

Sunspots are areas on the Sun that are cooler than the surrounding areas, resulting in them appearing dark.