About 5 billion years ago our solar system started. The correct option is C.
Our solar system is composed of our star, the Sun, and just about everything gravitationally bound to it, including the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune,
Also the dwarf planets like Pluto, are plenty of moons, and millions of asteroids, comets, and meteoroids.
The Sun and the planetary systems formed around each other 4.6 billion years ago from the solar nebula, a cloud of dust and gas.
The collapse of the solar nebula was most likely caused by a blast wave from a nearby supernova explosion. In the center, the Sun formed, and the planets formed in a thin disk orbiting it.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune are the planets, in order of their distance from the Sun.
Thus, the correct option is C.
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