1. How did the movement of sunspots on the surface of the sun affect people's' beliefs about astronomy at the time? A. The movement of sunspots showed that the sun was a perfect sphere with a perfect surface as people had believed.

B. The movement of sunspots proved that the sun rotated and that it was at the center of the solar system.

C. The movement of sunspots led people to believe that Earth traveled in space in a circle.

D. The movement of sunspots showed that scientists needed telescopes powerful enough to track these changes.