**Seventh Planet from the Sun: Uranus**

**Explanation:**

Uranus is the seventh planet from the Sun in our solar system. Let's explore some key details about Uranus:

1. **Position in the Solar System:**
- Uranus is located beyond Saturn and Neptune, making it the seventh planet from the Sun.
- It is positioned between Saturn (sixth planet) and Neptune (eighth planet).
- The order of planets from the Sun is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

2. **Discovery and Naming:**
- Uranus was discovered by the British astronomer William Herschel in 1781.
- Initially, Herschel named it "Georgium Sidus" after King George III of England. However, the name Uranus was later adopted to maintain consistency with the tradition of naming planets after ancient Roman deities.

3. **Physical Characteristics:**
- Uranus is a gas giant, primarily composed of hydrogen and helium.
- It has a distinct bluish-green color due to the presence of methane gas in its atmosphere.
- The planet's diameter is about four times that of the Earth.
- Uranus has a unique feature called axial tilt. Its axis of rotation is almost parallel to the plane of its orbit, causing it to appear to roll on its side.

4. **Moons and Rings:**
- Uranus has 27 known moons, with the five largest ones named Miranda, Ariel, Umbriel, Titania, and Oberon.
- The planet also has a system of rings, although they are not as prominent as Saturn's rings. The rings were discovered in 1977 by the Voyager 2 spacecraft.

5. **Exploration:**
- Uranus has been visited by only one spacecraft, Voyager 2, in 1986.
- Voyager 2 provided valuable insights into the planet's atmosphere, magnetic field, and moons.
- No future missions to Uranus have been planned yet.

In conclusion, the correct answer to the question is option 'C': Uranus. It is the seventh planet from the Sun, located between Saturn and Neptune. Uranus is a gas giant with a bluish-green color, an axial tilt, a system of moons, and a set of rings.

Ans c