In using a distillation apparatus, which of the following can be separated? Why?

Distillation is a way of separating two liquids. The answer is "A". The reason is because the alcohol solution is made up of 50% alcohol and 50% water. Alcohol has a lower boiling point than water. So by gently heating up the mixture, the alcohol will evaporate and leave the water behind. The evaporated alcohol can then be condensed by cooling it and collecting it in a separate container.