A 6-year-old child presented with the complaint of severe pallor, along with the presence of multiple petechial rashes throughout the body. a. What is the most likely diagnosis? b. What should be your approach for the confirmation of diagnosis? c. Write WHO classification of your provisional diagnosis.

Six year old male child came to the OPD with fever and fullness of abdomen, on examination he was pale and had hepatosplenomegaly. His CBC was as follow TLC-90000/μ1 Hb-5gm/d1 Platelets-60000/ μ1 a) What is your most probable diagnosis? b)Describe the peripheral blood smear and bone marrow picture related to his condition?