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>Two steel plates with Sy = 50 ksi are attached by 3/8-in. parallel-loaded fillet welds, as shown in Figure. E60 series welding rods are used, and good welding practice is followed. Each of the welds is 3 in. long. With a safety factor of 3, what maximum tensile load can be applied?<image 1>
A. 11456lb
B. 14700lb
C. 12457lb
D. 13000lb

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
Two steel plates with Sy = 50 ksi are attached by 3/8-in. parallel-loaded fillet welds, as shown in Figure. E60 series welding rods are used, and good welding practice is followed. Each of the welds is 3 in. long. With a safety factor of 3, what maximum tensile load can be applied?<image 1>
A. 11456lb
B. 14700lb
C. 12457lb
D. 13000lb

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