This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cervical intraepithelial and cervical cancer screening, Subject name: Gynaecology & Obstetrics
[{'content': 'Most common type of cervical cancer: \nSelect and explain. \nA. Squamous cell CA, B. Small cell CA, C. Adeno CA, D. Adenoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Squamous cell CARef. Shaws 15thed., pg: 964* The two most common histologic subtypes of cervical cancer are squamous cell and adenocarcinoma.* Of these, squamous cell tumors predominate, comprise 85 percent of all cervical cancers, and arise from the ectocervix* Adenocarcinomas comprise 10 to 15 percent of cervical cancers and arise from the endocervical mucus- producing glandular cells.', 'role': 'assistant'}]