The odd one out is B. Moon.
The Sun, stars, planets, and universe are all astronomical objects. The Moon is a natural satellite of the Earth.
The Sun is a star, a giant ball of hot gas that gives off light and heat. It is the center of our solar system and the largest object in it. The Sun is so big that it contains more than 99% of the mass of the solar system.
Stars are much larger than planets. The Sun is about 109 times wider than the Earth and about 333,000 times more massive.
Planets are smaller than stars. The Earth is about 8,000 miles in diameter, while Jupiter is about 88,736 miles in diameter.
The universe is everything that exists, including all of space and time. It is made up of billions of galaxies, each containing billions of stars.
The Moon is the only natural satellite of the Earth. It is about 2,159 miles in diameter and is the fifth largest moon in the solar system. The Moon’s surface is covered in craters, which were formed by impacts from asteroids and comets.
The Moon is not a star because it does not produce its own light. It reflects light from the Sun. The Moon’s orbit around the Earth takes about 27.3 days.