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
A 16 year old female presents with generalised weakness and palpitations. Her Hb is 7g/dl and peripheral smear shows microcytic hypochromic anaemia, reticulocyte count = 0.8 % serem bilirubin =1 mg%. The most likely diagnosis is - 
Select and explain. 
A. Iron deficiency is, B. Haemolytic anaemia, C. Aplastic anaemia, D. Folic acid deficiency
A: Iron deficiency is
Answer: A: Iron deficiency is 
Explanation: None