The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter?(1 point) A- Dark matter subtracts gravity, which allows the stars to rotate at the same speed.

B- Dark matter emits the light that astronomers need to see the orbital speeds of the stars.

C-Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.

D-Dark matter provides the gravity that allows the stars to rotate at the same speed.