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
Gemcitabine is effective in: 
Select and explain. 
A. Head and neck cancers, B. Pancreatic cancer, C. Small-cell lung cancer, D. Soft tissue sarcoma
B: Pancreatic cancer
Answer: B: Pancreatic cancer 
Explanation: Ans. (B) Pancreatic cancer(Ref: Katzung 10th/e p891, KDT 8th/e p924)Gemcitabine is an antimetabolite that is the drug of choice for pancreatic cancers.