This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hernia and abdominal wall, Subject name: Surgery
[{'content': 'Spigelian hernia is a type of hernia occurring at: \nSelect and explain. \nA. Medial border of rectus abdominis, B. Lateral border of rectus abdominis, C. Lumbar region, D. Femoral canal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hernia through Spigelian fascia. Located at Infra umbilical region (below arcuate line)', 'role': 'assistant'}]