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>The following image shows students taking the imperial examination in China c.960-1279 CE. <image 1> Why were Japan's early attempts at introducing the Chinese-style imperial exam largely unsuccessful?
A. The Japanese were unable to adapt to the Chinese style of examination.
B. Merchants resisted, fearing that efficient administrators would lead to increased taxes.
C. Japanese nobles feared that their power base would be weakened.
D. Christian missionaries discouraged the adoption of pagan practices.

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
The following image shows students taking the imperial examination in China c.960-1279 CE. <image 1> Why were Japan's early attempts at introducing the Chinese-style imperial exam largely unsuccessful?
A. The Japanese were unable to adapt to the Chinese style of examination.
B. Merchants resisted, fearing that efficient administrators would lead to increased taxes.
C. Japanese nobles feared that their power base would be weakened.
D. Christian missionaries discouraged the adoption of pagan practices.

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