This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cytotoxic Anticancer Drugs, Subject name: Pharmacology
Most common agent among the following which is associated with agranulocytosis is:- 
Select and explain. 
A. Steroids, B. Alkylating agents, C. Paracetamol, D. Endotoxemia
B: Alkylating agents
Answer: B: Alkylating agents 
Explanation: Agranulocytosis results due to bone marrow suppression caused by alkylating agents. Alkylating agents are anti-cancer drugs causing the maximum bone marrow suppression. Other drugs causing agranulocytosis are: * Carbimazole * Sulfasalazine * Clozapine * Quinine