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
Diagnosis of X linked agammaglobulinemia should be suspected if - 
Select and explain. 
A. Absent tonsils and no palpable lymph nodes on physical examination, B. Female Sex, C. High Isohernagglutinins titers, D. Low CD3
A: Absent tonsils and no palpable lymph nodes on physical examination
Answer: A: Absent tonsils and no palpable lymph nodes on physical examination 
Explanation: None