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: Dental
Incubation period of scabies is – 
Select and explain. 
A. 7 days, B. 2 weeks, C. 4 weeks, D. 2–3 days
C: 4 weeks
Answer: C: 4 weeks 
Explanation: Itching occurs due to hypersensitivity to saliva scabin of mite, and it takes 4-6 weeks are required for the hypersensitivity to develop. So, incubation period of scabies is 4-6 weeks.