In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.

Stan Butler: You know , Jack , I did n't think one plate of spuds would get rid of all that booze
Jack Harper: It does n't - you need _ three _ at least !
plate