Final answer:
Aggregators are websites that combine content from various sources into a single platform, tailored to user preferences.
Step-by-step explanation:
Aggregators are websites that combine pages from many sources and provide access to those pages customized to your needs and interests. Option (d) Aggregators best fits this description. These digital services gather and present content such as news articles, blog posts, podcasts, and videos from diverse sources in a single location for user convenience. Aggregators help users manage online content without having to visit each site individually. They can be especially useful for staying updated with the latest content in topics of personal or academic interest.