Explanation:

- Option 1: Earth

- Earth is the third planet from the Sun.

- It sits between Venus and Mars, in terms of proximity to the Sun.

- Option 2: Mars

- Mars is the fourth planet from the Sun.

- It is known as the "Red Planet."

- Option 3: Mercury

- Mercury is the planet nearest to the Sun.

- It is the smallest planet in the Solar System.

- Option 4: Venus

- Venus is the second planet from the Sun.

- It is similar in size and structure to Earth but is much hotter.