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: Microbiology
True statement about diptheria toxin is - 
Select and explain. 
A. Toxin is phage mediated, B. Toxin is required for local infection, C. Endotoxaemia causes systemic manifestation, D. Toxin acts by inhibiting synthesis of capsule
A: Toxin is phage mediated
Answer: A: Toxin is phage mediated 
Explanation: None