1. The question asks why only one question is answered at a time. 2. The reason is to ensure clarity and focus on providing a complete and detailed solution for the first question. 3. This approach helps avoid confusion and ensures quality in the explanation. 4. It is also a system rule to handle multiple questions efficiently. 5. If you want more questions answered, you can sign in or create a free account. Note: Due to high demand only first question will be answered. To get more questions answered in a single prompt, please sign in or create a free account.