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>.
M/V=D
16.52/2.26=D
Density=6.86 g/cm^3
Answer:
It is getting thicker and keeping the Earth warmer.