In paragraphs 3-4, how does the author make the connection between facial recognition and reading emotions?by explaining how reading emotions is the next step in the field of facial recognition by explaining how reading emotions is the next step in the field of facial recognition

by contrasting the importance of facial recognition with the triviality of reading emotions

by contrasting the importance of facial recognition with the triviality of reading emotions

by evaluating the usefulness of reading emotions for solving problems with facial recognition

by evaluating the usefulness of reading emotions for solving problems with facial recognition

by describing how techniques in facial recognition can be applied to reading emotions