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
Which of the following about SCID is false ? 
Select and explain. 
A. Failure of descent of thymus, B. Peyer's patches are present and normal, C. X-linked type is the most common, D. Gene therapy can be used
B: Peyer's patches are present and normal
Answer: B: Peyer's patches are present and normal 
Explanation: Ans. is 'b' i.e., Peyer's patches are present and normal