Answer:
Kuiper belt
Step-by-step explanation:
Kuiper belt is a disc that is present in the solar system on the outer side. It extends from the orbit of Neptune and then reaches up to 50 AU from the sun.
The Kuiper belt is also known as Edgeworth Kuiper belt.
Besides the dwarf planet pluto it also contains several comets, asteroids and other dwarf planets such as Eris, Maumee, etc.