A.
It is too far from the Sun.
B.
Its orbit is not cleared of like-sized or larger objects.
C.
It is not large enough in size.
D.
It does not have rings.
the answer is C
Pluto has three known moons, the largest is called Charon.
Pluto (if you still consider it as a planet),
No. Planet X was a proposed planet believed to orbit somewhere beyond Neptune based on an anomaly in the orbit of Uranus believed to be caused by the gravity of an unknown planet. Searches for planet X led to the discovery of Pluto, but later studies found that Pluto is not nearly massive enough to have caused the anomaly. It was later discovered that the apparent anomaly was due to a small miscalculation in the mass of Neptune.
The terms "outer planet" and "inner planet" are only used for planets. Pluto is not a planet, and it orbits beyond the outer planets.
Neptune, the furthest planet from the sun. Sometimes the dwarf planet Pluto comes inside its orbit.
Planetry orbits are elliptical. Most planet's orbits are nearly circular apart from Mercury and Pluto.
Pluto has three known moons, the largest is called Charon.
Pluto has a tilted orbit (compared with the average plane of the orbits of the other planets). Also, Pluto would be considered a "terrestrial planet", but it is not now defined as a planet. It's just called a "dwarf planet" now.
Pluto is a dwarf planet and trans-neptunian object. Crossing orbits with Neptune stops Pluto being a planet.
Pluto, which is a planetesimal, not a planet, orbits the star called Sol. Sol gives its name to our Sol-ar system, and is often called, "The Sun."
Pluto (if you still consider it as a planet),
Pluto isn't a moon, it orbits the sun, but it is a dwarf planet
No. Planet X was a proposed planet believed to orbit somewhere beyond Neptune based on an anomaly in the orbit of Uranus believed to be caused by the gravity of an unknown planet. Searches for planet X led to the discovery of Pluto, but later studies found that Pluto is not nearly massive enough to have caused the anomaly. It was later discovered that the apparent anomaly was due to a small miscalculation in the mass of Neptune.
The terms "outer planet" and "inner planet" are only used for planets. Pluto is not a planet, and it orbits beyond the outer planets.
Neptune, the furthest planet from the sun. Sometimes the dwarf planet Pluto comes inside its orbit.
The planet Neptune crosses the orbit of Pluto in an elliptic orbit
Back when Pluto was a planet and not a dwarf planet, it sometimes Neptune to be the ninth planet because their orbit crossed. Now that Pluto is a dwarf planet, there are only eight planets in the solar system.