This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inborn Errors of Metabolism, Subject name: Pediatrics
A 3-year-old child presented with anemia and thrombocytopenia. On examination, there was massive splenomegaly. A bone marrow aspiration revealed the following cells. What is the diagnosis? 
Select and explain. 
A. Mucopolysaccharidosis, B. Gaucher disease, C. Acute Leukemia, D. Thalassemia
B: Gaucher disease
Answer: B: Gaucher disease 
Explanation: b. Gaucher diseasePancytopenia with massive splenomegaly in a child with bone marrow showing Gaucher cells' with 'crumpled tissue paper' appearance of cytoplasm are seen in Gaucher disease