Question

which region of our solar system extends 100,000 a.u.s from the sun and is the outer limits of our solar system? this area contains billions of icy objects, including some comets?
kuiper belt
solar boundary limit
oort cloud
intergalactic space

Explanation:

The Oort Cloud is a spherical - shaped region that extends up to about 100,000 astronomical units (A.U.) from the Sun and contains billions of icy objects including comets. The Kuiper Belt is much closer to the Sun, the Solar Boundary Limit is not a well - known specific region in this context, and Intergalactic Space is outside the Solar System.

Answer:

C. Oort Cloud