Final answer:
The Solar System primarily consists of empty space, along with the Sun, planets, moons, and smaller objects like asteroids and comets, remnants of its formation 4.5 billion years ago.Option b} is the correct answer.
Step-by-step explanation:
The Solar System is mainly composed of empty space. However, it also contains the Sun, eight planets, moons, rings, asteroids, comets, and cosmic dust.
Most of the asteroids are found between Mars and Jupiter. The Solar System was formed around 4.5 billion years ago from a cloud of gas and dust.
The inner planets and most asteroids are made of rock and metal, while the outer planets, dwarf planets, and comets are mostly composed of ice and gas. Additionally, asteroids and comets are believed to be remnants from the Solar System's formation.