Respuesta :
The right option is; a. a solid inner planet
He is most likely observing a solid inner planet. The inner planets include Mercury, Venus, Earth and Mars. They are smaller and rockier with solid surfaces. The inner planets have either few moons or no moons, and are without rings. They are composed chiefly of heavy metals such as iron and nickel.
Answer:
the answer your looking for is the first option a solid inner planet.
Explanation:
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