The correct answer would be: To Place Together
A. Isotopes
Definition: another form of the same element, that have different relative atomic mass but the same chemical properties
The answers to this is: Dwarf planets have several other bodies in their path orbiting the sun just as they do. and The Kuipler Belt is between Uranus and Neptune.
The reasons these arent true is because if dwarf planets orbit around the sun they would be part of the solar system, i mean look at Pluto for example.
The Kuipler Belt is located between Mars and Jupiter I think.
Hope this helped :) Have a great day