This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy: General Principles, Subject name: Pharmacology
Which is the most active single chemotherapeutic agent in the treatment of leiomyosarcoma? 
Select and explain. 
A. Adriamycin, B. Daunorubicin, C. Methotrexate, D. Cisplatin
A: Adriamycin
Answer: A: Adriamycin 
Explanation: Ans. (A) Adriamycin(Ref: KDT 8th/e p926)Doxorubicin (adriamycin) and daunorubicin are anthracycline derivatives.Daunorubicin is mainly used for hematological malignancies (acute leukemia) whereas doxorubicin is used for solid tumors and soft tissue sarcomas.