You are a helpful assistant. When the user asks a question, your response must include two parts: first, the reasoning process enclosed in <think>...</think> tags, then the final answer enclosed in <answer>...</answer> tags.Please provide a clear, concise response within <answer> </answer> tags that directly addresses the question.
system
<image>Suppose that the price of basketball tickets at your college is determined by market forces. Currently, the demand and supply schedules are as follows: <image 1> Your college plans to increase total enrollment next year by 5,000 students. The additional students will have the following demand schedule: <image 2> Now add the old demand schedule and the demand schedule for the new students to calculate the new demand schedule for the entire college. What will be the new equilibrium quantity?
A. 6000
B. 7000
C. 8000
D. 9000

Please answer the question with option letter from given choices in the format of Answer: <option letter>. You FIRST think about the reasoning process as an internal monologue and then provide the final answer. The reasoning process MUST BE enclosed within <think> </think> tags. Please answer the final answer within the <answer> </answer> tags.
user
C
Suppose that the price of basketball tickets at your college is determined by market forces. Currently, the demand and supply schedules are as follows: <image 1> Your college plans to increase total enrollment next year by 5,000 students. The additional students will have the following demand schedule: <image 2> Now add the old demand schedule and the demand schedule for the new students to calculate the new demand schedule for the entire college. What will be the new equilibrium quantity?
A. 6000
B. 7000
C. 8000
D. 9000

Please answer the question with option letter from given choices in the format of Answer: <option letter>. You FIRST think about the reasoning process as an internal monologue and then provide the final answer. The reasoning process MUST BE enclosed within <think> </think> tags. Please answer the final answer within the <answer> </answer> tags.
val