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: Physiology
"EMA-CO regimen" is useful in Rx of 
Select and explain. 
A. Metastatic breast cancer, B. Advanced endometrial sarcoma, C. Gestational trophoblastic neoplasia, D. Ovarian tumor with peritoneal implants
C: Gestational trophoblastic neoplasia
Answer: C: Gestational trophoblastic neoplasia 
Explanation: EMA-CO a cyclic non-cross-resistant combina on of etoposide, methotrexate, and dactinomycin alternating with cyclophosphamide and vincristine.