Question

Why is Pluto no longer considered a planet?

A.It is not large enough to be a planet.
B.Pluto does not orbit the sun as originally thought.
C.It does not orbit in an area clear of other celestial bodies.
D.It is too far away from the sun to be part of our solar system.

Answer 1

It has not completely cleared its orbit therefore it is not considered a planet.
so your answer is B

Answer 2

B cause the orbit is not the same as the other planets in our solar system