Tell me the answer please?? Description Finds subjective content, such as comments, reviews, and opinions Service that connects you with a human librarian Engine that searches Web pages in its...

Description Finds subjective content, such as comments, reviews, and opinions Service that connects you with a human librarian Engine that searches Web pages in its database that contain specific words or phrases Offers the convenience of searching many sources from one Web site Engine that provides access to academic information for research