The image in the picture is a comet. what characteristic best identifies it as a comet?
a) comets are streaks of light.
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b) comets are larger than asteroids.
c) comets enter the earth's atmosphere.
d) comets develop a fuzzy, cloud-like shell called a coma, as well as a tail.

Comets develop a fuzzy, cloud-like shell called a coma, as well as a tail.

Explanation:

This feature of a comet develops when the celestial body passes close to a star such as the sun. The ice around the nucleus of the comet sublimates forming the coma around the comment (when hit by light photons as observed from the earth). The tails are also formed by the ice being pushed a bit behind the comet by light pressure.