Salts Containing Only Doubly or Triply Charged Ions Are Often

Salts containing only doubly or triply charged ions are often insoluble in water. This could be because

A) the ions are highly charged, and a large number of water molecules is organized around them, so DS is negative.
B) the ions are highly charged, hence the lattice energy is very large, and DH therefore tends to be negative.
C) the ions are very large, hence the lattice energy is very large, and DH is positive.
D) both a and b.
E) both a and c.