Solid KF Has a Lattice Energy of -804 KJ/mol and a Heat

Multiple Choice

Solid KF has a lattice energy of -804 kJ/mol and a heat of solution (in water) of -15 kJ/mol. RbF has a lattice energy of -768 kJ/mol and a heat of solution (in water) of -24 kJ/mol. Which salt forms stronger attractions with water?

A) They form equally strong attractions with water, because they both have negative heats of mixing.
B) KF, because it has a more exothermic lattice energy
C) RbF, because it has a more negative heat of hydration
D) KF, because it has a more negative heat of hydration
E) RbF, because it has a less exothermic lattice energy