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>You are asked to compare two options with parameters as given. The risk-free interest rate should be assumed to be 6%. Assume the stocks on which these options are written pay no dividends. <image 1> Which call option is written on the stock with the higher volatility?
A. A
B. B
C. Not enough information

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
B
You are asked to compare two options with parameters as given. The risk-free interest rate should be assumed to be 6%. Assume the stocks on which these options are written pay no dividends. <image 1> Which call option is written on the stock with the higher volatility?
A. A
B. B
C. Not enough information

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