Answer:
It's a, trust me I'm very good with chemistry
Ethanol will evaporate first because it is more volatile or has a lower boiling point than water.
The value of the activation energy of an uncatalyzed reaction is greater than that of a catalyzed reaction. As we know, a catalyst provides an alternative path for the reaction to happen at a faster rate. So, for a catalyzed reactio, activation energy is lesser than the original path.
