Answer ANY TWO from the three questions (C1, C2, and C3) below: Note: 1. Please indicate the question number (C1, C2, or C3) before your answer. 2. If you answer all questions, only the first two will be marked. C1. A college wants to build a self-learning system so that the students can learn some subjects as if they have their own private tutors. The system will provide teaching to students. When the students have questions, they can ask the system. The system will answer the students' questions based on the knowledge learned. Assume you are now the IT consultant of this project, please suggest five Al technologies for this project and briefly explain the function for each suggested technology (5 marks) C2. Describe electronic commerce. What type of electronic commerce Agoda.com is and why? (5 marks) C3. After machine learning for a classifier, the neural network will form a classification boundary. cxx X XX Figure a Figure b (a) In Figure a, what is the problem of the learning? Suggest two solutions to solve the problem. (3 marks) (b) In Figure b, what is the problem of the learning? Suggest a solution to solve the problem. (2 marks)