.Which of the followings is in the outermost reaches of the solar system? Orion Nebula Andromeda Galaxy Oort Cloud Asteroid belt Interstellar wormhole

The outermost reaches of the solar system are represented by the Oort Cloud.

The Oort Cloud is a theoretical cloud of predominantly icy objects that is believed to exist at the farthest reaches of the solar system. It is thought to be a source of long-period comets and is located approximately 50,000 to 100,000 astronomical units (AU) away from the Sun. In contrast:

1. Orion Nebula - A nearby star-forming region located about 1,344 light-years from Earth, far within our galaxy.
2. Andromeda Galaxy - The nearest spiral galaxy to the Milky Way, located about 2.537 million light-years away.
3. Asteroid belt - Located between the orbits of Mars and Jupiter, much closer than the outer solar system.
4. Interstellar wormhole - A theoretical concept in physics, but not a physical structure within the solar system.

Thus, among the options provided, the Oort Cloud is the correct answer.