Explanation:

- Option 1: Neptune:

- Neptune is the windiest planet in our solar system.

- Wind speeds can exceed 1,200 miles per hour (2,000 kilometers per hour).

- These intense winds are due to the planet's cold temperatures and atmospheric composition.

- Correct Answer.

- Option 2: Uranus:

- Uranus is windy but not as much as Neptune.

- Wind speeds can reach up to 560 miles per hour (900 kilometers per hour).

- Option 3: Saturn:

- Saturn also has strong winds, up to 1,100 miles per hour (1,770 kilometers per hour).

- However, it is still less than those on Neptune.

- Option 4: Mars:

- Mars experiences dust storms with winds up to 60 miles per hour (97 kilometers per hour).

- These are minor compared to the gas giants.