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: Pediatrics
The likely diagnosis in a child with limb pain and pancytopenia is – 
Select and explain. 
A. Aplastic anaemia, B. Acute lymphocytic leukaemia, C. Rheumatic fever, D. Rheumatoid arthritis
B: Acute lymphocytic leukaemia
Answer: B: Acute lymphocytic leukaemia 
Explanation: None