A student argues that Pluto cannot be a trans-Neptunian object because Pluto is a planet, and trans-Neptunían objects include only minor bodies in the solar
system. Is the student correct?
A. Yes. Pluto is not a trans-Neptunian object for the reason the student gives.
B. No. Pluto is not a trans-Neptunian object, but not for the reason the student gives. Instead, for most of its orbit, Pluto is closer to the sun than
Neptune is
C. No. Pluto is a dwarf planet, not a planet. Therefore, Pluto is a trans-Neptunian object.
D. No. Trans-Neptunian objects include all objects, including planets, that orbit the sun beyond the orbit of Neptune. Therefore, Pluto is a trans-
Neptunian object.