Elisa is a frequent shopper at a website called DoggieDuds. Every time she visits the website on her laptop, the site suggests new sweaters in size extra- small to fit her Yorkshire terrier. How does the website know what items to suggest to Elisa?
A. The website has left small files called cookies on Elisa's laptop
B. The website has a pixel that sends Elisa's shopping information from other websites
C. Elisa has given the website her IP address, so it knows everything about her
D. Elisa has accidentally downloaded a virus from the website
