directions of revolution of the planets directions of rotation of the planets distribution of moons among the planets distribution of elements among the planets
I gave my students this multiple choice question: Which current property of our solar system is mainly due to solar emissions occurring soon after the initiation of fusion in the Sun's core?

Only one answer is correct among these 4 choices:
- directions of revolution of the planets
- directions of rotation of the planets
- distribution of moons among the planets
- distribution of elements among the planets

Could you tell me which one is correct?

distribution of elements among the planets