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
Note a delayed type of hypersensitive reactions -a)  Arthus reactionb) Bronchial asthmac) Hemolytic anemiad) Multiple sclerosis 
Select and explain. 
A. ab, B. bc, C. abc, D. bcd
C: abc
Answer: C: abc 
Explanation: None