V retails toy cars. He manufactures the product in batches of one thousand and then visits various independent toy shops, trying to convince them to stock the product on their shelves.

This is an example of a$($n$)\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ supply chain.

Required:

Select the word missing in the above sentence.

Customer

Electronic

Push

Pull