Concept:The passage states that AI chatbots are used to handle basic student queries, reducing teacher workload.
Explanation:The passage directly mentions: "Schools are also using AI chatbots to answer basic queries, reducing the pressure on teachers."
This shows the purpose is to answer student questions.
Options like monitoring cameras, taking exams, or conducting interviews are not supported by the passage.
Thus, the correct reason is clearly stated in the text.
Answer:C. To answer student questions