Uranus is unique among the planets in that it

A. orbits the Sun on its side

B. has an oxygen atmosphere

C. has rings

A. orbits the Sun on its side

The answer is A)

Here are some informations you should know:

Uranus is the seventh planet from the sun and the third giant gas planet. It rotates like all planets. But Uranus tilts far to one side. Instead of rotating in an upright position, Uranus rolls along like a bowling ball. Uranus also travels very slowly. Uranus has 27 moons. It takes 84 Earth days to complete one orbit.