This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
Anemia with reticulocytosis is seen in- 
Select and explain. 
A. Hemolysis, B. Iron deficiency anemia, C. Vitamin B12 deficiency, D. Aplastic anemia
A: Hemolysis
Answer: A: Hemolysis 
Explanation: In the tests of increased red cell production, reticulocyte count reveals reticulocytosis which is Generally early and is hence most useful initial test of marrow erythroid hyperplasia of hemolytic anemia Reference textbook of Pathology 7th edition author Harsha Mohan page number 287 Ref Robbins 9/e pg409