This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
Type of immunity conferred on an individual by vaccination is - 
Select and explain. 
A. Aificial active, B. Aificial passive, C. Natural active, D. Natural passive
A: Aificial active
Answer: A: Aificial active 
Explanation: Aificially acquired active immunity can be induced by a vaccine, a substance that contains antigen. A vaccine stimulates a primary response against the antigen without causing symptoms of the disease Ref: Ananthanarayan & Panikers textbook of microbiology 9th edition pg:83