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
When transfer factor is given, treatment results in 
Select and explain. 
A. Natural active immunity, B. Artificial active immunity, C. Artificial passive immunity, D. Adoptive immunity
D: Adoptive immunity
Answer: D: Adoptive immunity 
Explanation: None