This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral Cavity, Subject name: Surgery
[{'content': 'Lower Lip carcinoma <1 cm treatment is \nSelect and explain. \nA. RT, B. Chemotherapy, C. Surgical excision, D. RT + CT', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Surgical excisionRef: Bailey and Love 27th edition Page 768Lip cancer management.Smaller Tumors <2cm)* Excision by V or W shaped under Local or General Anaesthesia.* Defect of less than 1 /3rd defect is closed by primary closure in 3 layers - Mucosa, Muscle, Skin.Intermediate Tumors:* 1 /3rd to 2/3rd defect happens- Local flaps must be used like Johansen Step ladder flapTotal Lip Reconstruction:* T 4 lesions needs complete Excision of Lip.* Radial forearm free flap or Perforator flaps such as Antero lateral Thigh or Medial Sural Artery Perforator (MSAP) free flap.', 'role': 'assistant'}]