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>Solar Designs is considering an investment in an expanded product line. Two possible types of expansion are being considered. After investigating the possible outcomes, the company made the estimates shown in the following table. <image 1> Determine the range of the rates of return for each of the two projects.
A. Expansion A: 20% to 24%; Expansion B: 10% to 30%
B. Expansion A: 16% to 24%; Expansion B: 10% to 30%
C. Expansion A: 16% to 24%; Expansion B: 20% to 30%
D. Expansion A: 20% to 24%; Expansion B: 20% to 30%

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
Solar Designs is considering an investment in an expanded product line. Two possible types of expansion are being considered. After investigating the possible outcomes, the company made the estimates shown in the following table. <image 1> Determine the range of the rates of return for each of the two projects.
A. Expansion A: 20% to 24%; Expansion B: 10% to 30%
B. Expansion A: 16% to 24%; Expansion B: 10% to 30%
C. Expansion A: 16% to 24%; Expansion B: 20% to 30%
D. Expansion A: 20% to 24%; Expansion B: 20% to 30%

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