This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower limb, Subject name: Anatomy
[{'content': 'Lateral cutaneous nerve of thigh arises from \nSelect and explain. \nA. Femoral Nerve, B. Lumbar Plexus, C. Obturator Nerve, D. Sciatic nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: LUMBAR PLEXUSFormed by ventral rami of LI, L2, L3, and pa of L4. These rami divide into dorsal and ventral divisions.From the ventral divisions: ilioinguinal (LI), genitofemoral (LI, L2) obturator (L2, L3, L4), accessory obturator (L3, L4) nerves.From the dorsal divisions: Lateral cutaneous nerve of thigh (L2, L3), femoral nerve (L2, L3, L4).Iliohypogastric contains fibers of both ventral and dorsal divisions (LI).Reference: Chaurasia Volume II; 7th edition; Page no: 41', 'role': 'assistant'}]