This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Most common presentation of anterior wall cervical fibroid NOT RELATED-GYN \nSelect and explain. \nA. Abdominal lump, B. Urinary retention, C. Per vaginal bleeding, D. Constipation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cervical fibroids are relatively uncommon, accounting for 2% of uterine leiomyomata. They arise in the cervix and are usually single. They tend to disto and elongate the cervical canal, and push the uterus upwards. Large tumors may cause elongation and distoion of the urethra, resulting in urinary retention.', 'role': 'assistant'}]