Methyl Alcohol,also Known as Wood Alcohol,is a Common Solvent and Paint

Methyl alcohol,also known as wood alcohol,is a common solvent and paint remover.It is poisonous if accidentally swallowed.The enzyme alcohol dehydrogenase in the liver converts methyl alcohol into formaldehyde,which then gets converted into a toxic product.Grain alcohol,ethyl alcohol,is also acted upon by alcohol dehydrogenase.One antidote for methyl alcohol poisoning is to make a person drink a lot of ethyl alcohol.This blocks the active site of the enzyme so that it can't bind to and break down the methyl alcohol.In this capacity,the ethyl alcohol is acting as a/an:

A) allosteric regulator.
B) coenzyme.
C) competitive inhibtor.
D) precursor.