In which sentence would the word "vat" best replace the word "container"?

AMy mom asked me to get a plastic container out of the cupboard so that she could put away the leftovers.

BThere was some sort of metal container inside the box that we had received in the mail.

COn our tour of the cheese factory, we saw a container in which they store hundreds of gallons of milk.

DThis refrigerator has a special container built into it that keeps fruits and vegetables fresh.