Which of the following is a star?

The celestial self-luminous object which produces energy on their own in the form of radiation due to thermonuclear fusion are called Stars.

Option (B): Phobos is one of the moons of mars. It is natural satellites of Mars.

Option (C): Asteroids: - These are the rock that fails to form a planet during the formation of the solar system.

Option (D): Comet: - These are a group of celestial objects, which revolve around the sun in an elliptical orbit.

There are numerous stars of various sizes, out of which sun is one such star. In fact, the sun is the nearest star.