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>For the system of <image 1>, find the values of K1 and K2 to yield a peak time of 1 second and a settling time of 2 seconds for the closed-loop system's step response. 
A. K2=0.6,K1=0.277
B. K2=0.06,K1=0.377
C. K2=0.06,K1=0.277
D. K2=0.01,K1=0.177

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
For the system of <image 1>, find the values of K1 and K2 to yield a peak time of 1 second and a settling time of 2 seconds for the closed-loop system's step response. 
A. K2=0.6,K1=0.277
B. K2=0.06,K1=0.377
C. K2=0.06,K1=0.277
D. K2=0.01,K1=0.177

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