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: Medicine
Which of the following immunoglobulins can crosses placenta: 
Select and explain. 
A. IgA, B. IgM, C. IgG, D. IgD
C: IgG
Answer: C: IgG 
Explanation: Answer is C (IgG): IgG is the only maternal immunoglobulin, that is normally transpoed across the placenta and provides natural passive immunity in the newborn.