Chemistry A-Level

Which one of the following would not be affected by boiling with aqueous sodium hydroxide?

A ethyl ethanoate
B glycerol
C olive oil
D propanoic acid

Can someone please explain why the answer is B

Put simply Glycerol is an alcohol. Alcohols don't react with strong bases. Do I need to explain further or is that sufficient?

Thanks for your explanation. Is there a reason why alcohols don't react with strong bases?

Thanks for your explanation. Is there a reason why alcohols don't react with strong bases?

I just realised that another way to think of it is that the Ka value of alcohols is lower than that of phenols and carboxylic acids. Thus it dissociates less H+ in a reaction with a base. It's therefore not reactive enough to produce enough H+ in a reaction with NaOH to produce a product.

Thank you