You are designing an AI solution that will provide feedback to teachers who train students over the Internet. The students will be in classrooms located in remote areas. The solution will capture video and audio data of the students in the classrooms. You need to recommend Azure Cognitive Services for the AI solution to meet the following requirements: Alert teachers if a student seems angry or distracted. Identify each student in the classrooms for attendance purposes. Allow the teachers to log the text of conversations between themselves and the students. Which Cognitive Services should you recommend?