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: Pathology
All of the following statements about acute leukemia in children are true except 
Select and explain. 
A. It characteristically causes gross gingival swelling, B. It may he manifested by mucosal pallor, C. It can cause obvious purpura, D. It is usually of the lymphoblastic variety
A: It characteristically causes gross gingival swelling
Answer: A: It characteristically causes gross gingival swelling 
Explanation: None