Which of the Following Is Not a Piece of Evidence

Which of the following is not a piece of evidence supporting the idea that Pluto is a large comet of the Kuiper belt?

A) Pluto grows a coma and a long tail when it is at the point in its orbit closest to the Sun.
B) Pluto's composition appears to match that of other known Kuiper belt comets.
C) Triton, which must once have orbited the Sun before being captured by Neptune, is significantly larger than Pluto.
D) Pluto's orbit is very similar to the orbits of other known Kuiper belt comets.
E) Pluto is not the largest object orbiting in the region of the Kuiper belt.