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>Can you see the finding on this x-ray of the pelvis? <image 1> 
A. Fracture of the femoral neck
B. Dislocation of the sacroiliac joint
C. Foreign body in the midline at the level of the pubic symphysis
D. Air the in bladder

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
Can you see the finding on this x-ray of the pelvis? <image 1> 
A. Fracture of the femoral neck
B. Dislocation of the sacroiliac joint
C. Foreign body in the midline at the level of the pubic symphysis
D. Air the in bladder

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