Question

Grade 8 Science

Does anyone know the correct answer to this Science question?

What do Pluto, Ceres, and Eris have in common?
They are major planets that orbit beyond Neptune.
They are spherical masses that orbit a star.
They are comets in the Kuiper belt.
They are rocky bodies in the asteroid belt.

Answer 1

I think the answer is "They are spherical masses that orbit a star", since they're not comets, only Ceres is in the asteroid belt, and they are not major planets.