Which energy changes in the enthalpy of solution are endothermic, and which are exothermic?

Hsolute and H solvent are endothermic; Hmix is exothermic.

Hsolute is endothermic; Hsolvent and Hmix are exothermic.

Hsolute is exothermic; Hsovent and Hmix are endothermic.

Hsolute, Hsolvent, and Hmix are all exothermic.