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>In a traverse ABCDEFG, the line BA is taken as the reference meridian. The coordinates of the sides AB, BC, CD, DE and EF are:<image 1>If the bearing of FG is 284°13' and its length is 896.0 m, find the length and bearing of GA.
A. 945.8 m, 216°45'
B. 947.8 m, 216°45'
C. 937.8 m, 216°45'
D. 941.8 m, 216°45'

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
In a traverse ABCDEFG, the line BA is taken as the reference meridian. The coordinates of the sides AB, BC, CD, DE and EF are:<image 1>If the bearing of FG is 284°13' and its length is 896.0 m, find the length and bearing of GA.
A. 945.8 m, 216°45'
B. 947.8 m, 216°45'
C. 937.8 m, 216°45'
D. 941.8 m, 216°45'

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