The disturbance of a supersaturated solution will cause:

Ibelieve its a because an empirical formula usually has a ch in it your options are a or b

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

Ineed with this also i hope you understand it