A democracy is what we are
The correct answer is D. The heat from the sun allowed only rocky planets to form in the inner part of the solar system.
Explanation
The inner solar system is the name of the region that includes the inner planets that are characterized by being terrestrial in type, have dense and rocky compositions, few or no moons, and there are no ring systems. Another of its characteristics is that Venus, Earth, and Mars have enough atmosphere to generate climate. On the other hand, the region of the outer planets includes the four most distant planets from the sun, located beyond the asteroid belt, that is, Jupiter, Saturn, Uranus, and Neptune that are characterized by rotating at high speed, have gaseous surfaces, and rings around them (the most notable example is Saturn).
<span>The largest mass extinction in Earth's history, the Permian–Triassic extinction event. The effects of this catastrophe were so devastating that it took life on land 30 million years into the Mesozoic to recover.[1] Recovery of life in the sea may have been much faster." </span>
...asteroids and comets. Planets formed much later.