When a Formal Definition of a Planet in the Solar

Multiple Choice

When a formal definition of a planet in the solar system was adopted, Pluto was reclassifiedas a dwarf planet. What characteristic of planets does NOT describe Pluto?

A) Planets orbit the Sun.
B) Planets are approximately spherical.
C) Planets have cleared the neighborhood around their orbit.
D) Planets orbit in ellipses with low eccentricity.
E) Planets orbit in or very near the ecliptic plane.