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
A 10 year old female patient diagnosed as a case of
down's syndrome having mosaicism variety.

Following	dental	problem	are	usually in association
with it, except 
Select and explain. 
A. Retarded eruption, B. Late shedding of deciduous teeth, C. Hypodontia, D. Microdontia
B: Late shedding of deciduous teeth
Answer: B: Late shedding of deciduous teeth 
Explanation: None