A 4-year-old boy presented to emergency department with history of generalized weakness and passing dark colored urineof one day duration. His mother stated that he had eaten Fava beans the day before. Physical examination revealed a markedly pale boy with tachycardia. The doctor suspected G6PD deficiency. Which of the following investigations will support the diagnosis of acute hemolysis in this patient?A. Decreased iron serum level B. Increased Ferritin level C. Complete blood count and reticulocyte count D. Elevated conjugated bilirubin level E. Increased fibrinogen level