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>A maternal and child health facility wanted to evaluate the effectiveness of two methods of screening for cervical intraepithelial neoplasia (CIN I-III), electronic colposcopy and cervical liquid-based cytology (TCT). 600 gynaecological outpatient cases were examined by both methods, and all cases were confirmed with cervical histopathology (the gold standard) at the same time. The results of all examinations were summarised in the table.<image 1> The specificity of electronic colposcopy was
A. 0.93
B. 0.98
C. 0.75
D. 0.49

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
A
A maternal and child health facility wanted to evaluate the effectiveness of two methods of screening for cervical intraepithelial neoplasia (CIN I-III), electronic colposcopy and cervical liquid-based cytology (TCT). 600 gynaecological outpatient cases were examined by both methods, and all cases were confirmed with cervical histopathology (the gold standard) at the same time. The results of all examinations were summarised in the table.<image 1> The specificity of electronic colposcopy was
A. 0.93
B. 0.98
C. 0.75
D. 0.49

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