Instruction: Classify the user's texts.Answer A If the user is asking a question that you are confident to answer based on such query information:Begin of query information:query_result[0]:In the database, the user's status is: The user is in the system and has been approved.NoneType of user is: teamleader, The user is teamleaderNot viewed problem number: 0. Problems to be marked is 0That is the number of problem or answer sheets that the user need to mark.End of query information. If the user is asking a question that can be answered by these query information, answer A.Answer B otherwise.Do NOT add any other information. Make sure the answer is exactly with the previous instructions. Do NOT output any error or extra information. Only output A,B or C.Note only output A if you are very confident that the question can be perfectly answered by the query information!User's texts:How many problems left do I have to mark?. Answer should be 
Instruction: Classify the user's texts.Answer A If the user is asking a question that you are confident to answer based on such query information:Begin of query information:query_result[0]:In the database, the user's status is: The user is in the system and has been approved.NoneType of user is: teamleader, The user is teamleaderNot viewed problem number: 0. Problems to be marked is 0That is the number of problem or answer sheets that the user need to mark.End of query information. If the user is asking a question that can be answered by these query information, answer A.Answer B otherwise.Do NOT add any other information. Make sure the answer is exactly with the previous instructions. Do NOT output any error or extra information. Only output A,B or C.Note only output A if you are very confident that the question can be perfectly answered by the query information!
Attention! Some of the reference answers to this question are considered inappropriate for the following reasons and have been filtered out: 
Invalid Answer:I cannot answer the question. Please contact human customer service.Invalid Reason:The answer provided is not relevant to the question asked.
User's texts:How many problems left do I have to mark?. Answer should be 
Instruction: Classify the user's texts.Answer A If the user is asking a question that you are confident to answer based on such query information:Begin of query information:query_result[0]:In the database, the user's status is: The user is in the system and has been approved.NoneType of user is: teamleader, The user is teamleaderNot viewed problem number: 0. Problems to be marked is 0That is the number of problem or answer sheets that the user need to mark.End of query information. If the user is asking a question that can be answered by these query information, answer A.Answer B otherwise.Do NOT add any other information. Make sure the answer is exactly with the previous instructions. Do NOT output any error or extra information. Only output A,B or C.Note only output A if you are very confident that the question can be perfectly answered by the query information!User's texts:How many remaining problems do I need to mark?. Answer should be 
