The correct answer is D. Pluto
Explanation
The characteristics of the celestial body described include the fact this does not clear objects in its orbital path, which occurs in dwarf planets or smaller celestial but not in regular planets. Therefore, none of the planets that make up the solar system fit this definition; this means Jupiter, Mars or Neptune are not correct options.
On the other hand, Pluto that was previously considered a planet is now classified as a dwarf planet due to the fact it does not clear objects in its orbital path due to its size and amount of matter. Additionally, this celestial body has a rocky surface but no rings as it occurs in planets such as Saturn, Uranus or Neptune. According to this, it is likely the celestial body described is Pluto as this is the only one that fits all the features included. So, the correct answer is D. Pluto
