What is the primary purpose of cookies downloaded from websites?

The primary purpose of cookies downloaded from websites is to collect data that helps in understanding user preferences, behaviors, and activities while interacting with a site. This includes learning shopping habits, storing login credentials, and maintaining user sessions. When a cookie is created, it saves information about your interactions and preferences, allowing online stores to remember items in your shopping cart or provide personalized recommendations based on previous browsing or purchase history. This functionality enhances the overall user experience by making interactions more seamless and tailored to individual needs, which is why option B is the correct choice.

While cookies may also have other side benefits, such as potentially improving loading times for returning visitors or offering features that may refine browsing speed, the primary function revolves around user data management and personalization, which is encapsulated in option B.