Two analogies that relate items to the associated containers is given in the form "A : B. C : ?". "A : B" relates item A to its associated container B. Your task is to replace the question mark (?) with the appropriate container for the given item C, following the "A : B" relation.

[EX Q]: cereal : box. carrots : ?
[EX A]: bag

[EX Q]: carrots : bag. poster : ?
[EX A]: tube

[EX Q]: water : bottle. carrots : ?
[EX A]:
bag