Which identifies an important discovery made during the Renaissance with the use of the newly invented telescope?

Question

A. The earth previously had multiple moons
B. The edges of our galaxy were mapped out.
C. Pluto is the last planet in our solar system.
D. The sun is at the center of the solar system.

I think it is D

Answer 1

I agree.

Answer 2

While I agree that D is the best choice among those given, the telescope simply showed that other planets also had moons, meaning that the earth was not the center of everything, and maybe Copernicus's theory should be given more serious consideration.