Answer:
C) They are not made of matter.
Explanation:
Case in which protons are inside of neutrons doesn't exist.
They are the outer layer of the electron layers.
This question is incomplete. Luckily, I found the same problem which is shown in the attached picture. To answer the question, we must know how the size and charge affect the lattice energy. The answer is: lattice energy increases with the increasing charge of the ions, and decreasing radius of the atoms.
<em>Therefore, the ranking would be: A < B < C</em>.