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
Vasanti, a 25-year-old-girl, presents with complaints of fever and weakness. On examination there is splenomegaly of 3 cm below the costal margin.Hb is 8 gm/dL, TLC is 3,000/mm3 , platelet count is 80,000 mm3. Which of the following is the least likely diagnosis - 
Select and explain. 
A. Acute lymphocytic leukemia, B. Anemia of chronic disease, C. Aplastic anemia, D. Megaloblastic anemia
C: Aplastic anemia
Answer: C: Aplastic anemia 
Explanation: None