When Loretta Went to Amazon

Multiple Choice

When Loretta went to Amazon.ca to see if they had any new books about Australian wine, the first thing she saw was a personalized greeting. Which of the following best describes how Amazon.ca knew it was Loretta?

A) She used a password
B) Another retailer sold her private information to Amazon
C) Amazon.ca placed cookies on her hard drive to identify her when she visits the website
D) She ordered before and told them her name
E) Her name is on all of her shipments as well as her address