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 road is being proposed to facilitate a housing development on a scenic lake. Two alternatives have been suggested. One of the roadway alignments is to go around the lake  and slightly impact a wetland. The second alternative will also go around the lake and  will significantly impact two wetlands. The following table shows the anticipated costs  for each alternative. Assuming that the annual interestrate is 7 percent, determine which alternative is preferred using equivalent annual cost analysis.<image 1>
A. EUAW1=$18,444, EUAW2=$19,730
B. EUAW1=$18,444, EUAW2=$15,730
C. EUAW1=$15,444, EUAW2=$19,730

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 road is being proposed to facilitate a housing development on a scenic lake. Two alternatives have been suggested. One of the roadway alignments is to go around the lake  and slightly impact a wetland. The second alternative will also go around the lake and  will significantly impact two wetlands. The following table shows the anticipated costs  for each alternative. Assuming that the annual interestrate is 7 percent, determine which alternative is preferred using equivalent annual cost analysis.<image 1>
A. EUAW1=$18,444, EUAW2=$19,730
B. EUAW1=$18,444, EUAW2=$15,730
C. EUAW1=$15,444, EUAW2=$19,730

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