Which among the following are final goods and which are intermediate goods?

(a) Milk purchased by a tea stall is an intermediate good as it is used as input in the production process. (b) Bus purchased by a school is a final good as it is investment expenditure and is a capital good. (c) Juice purchased by a student from a school canteen is a final good as it ends up in final consumption and this is a perfect example of a final good.