This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Pathology
[{'content': 'Fixative agent for PAP smear is which of the following? \nSelect and explain. \nA. Normal saline, B. 95% ethanol, C. Formalin, D. Air drying', 'role': 'user'}, {'content': 'Answer: B \nExplanation: PAP smear is an impoant screening test which is used to diagnose cervical dysplasia or cervical carcinoma in females. We use Ether and 95% ethyl alcohol solution in the ratio 1:1 as fixative for the purpose of PAP smear. Best screening test to pick up cervical cancer in the early stage - (Visual Inspection of Cervix with Acetic acid)', 'role': 'assistant'}]