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: Skin
Patch test is a type of: 
Select and explain. 
A. Immediate hypersensitivity, B. Antibody mediated hypersensitivity, C. Immune complex mediate hypersensitivity, D. Delayed type hypersensitivity
D: Delayed type hypersensitivity
Answer: D: Delayed type hypersensitivity 
Explanation: D i.e. Delayed type hypersensitivity