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
All are true regarding Hyper IgE syndrome except- 
Select and explain. 
A. Inheritance is as a single locus Autosomal dominant trait with variable expression, B. Coarse facial features, C. Recurrent staphylococcal abscesses involving skin, lungs, D. High serum IgE with low IgG, IgA and IgM
D: High serum IgE with low IgG, IgA and IgM
Answer: D: High serum IgE with low IgG, IgA and IgM 
Explanation: None