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: Social & Preventive Medicine
Infections transmitted by blood ? 
Select and explain. 
A. HIV, B. Malaria, C. Toxoplasma, D. All
D: All
Answer: D: All 
Explanation: Ans. is'd' i.e., All