This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
. Most common cause of Carcinomatous meningitis - 
Select and explain. 
A. Carcinoma breast, B. Carcinoma lung, C. Carcinoma gut, D. Malignant melanoma
A: Carcinoma breast
Answer: A: Carcinoma breast 
Explanation: Answer- A. Carcinoma breastCarcinoma breast in the most common cause of carcinomatous meningites.