Answer:
This begins with PARTNERING WITH VENDORS and ends with MARKETING AND SALES.
Explanation:
Since Nordstrom has no manufacturing operations, its upstream operations include purchasing goods from its vendors, while its downstream activities involve marketing and selling those goods to its clients. As a retailer, it buys goods at a certain price and resells then at a higher price making a profit. So its main procurement activities start with its vendors and ends once it sells the goods to its clients.