The Vermont Teddy Bear Company Sells Handmade Teddy Bears Designed

The Vermont Teddy Bear Company sells handmade Teddy bears designed to be given as gifts for almost every occasion imaginable.The Love Bandit Bear is one bear it designed for people to give to each other on Valentine's Day.The unique identification number that the Vermont Teddy Bear Company uses to distinguish this Teddy bear from the others in its inventory and to order new stock when its numbers are depleted is a(n)

A) Universal product code.
B) Independent stock code.
C) Order quantity code.
D) Stock keeping unit.
E) Stock ID code.