Distillation is used to separate _____. a. heterogeneous mixtures b. suspensions c. colloids d. solutions

Distillation is the process of separating homogeneous mixtures -and  a solution is a homogenous mixture, so this is the correct answer! A homoogeneous mixture is a mixture in which the elements are mixed so well, that the mixture has a similar composition in all its parts. A heat can be applied to this mixture then to separate the parts - this is destination!