<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 16-year-old girl is brought to the physician because of yellowish discoloration of her eyes and generalized fatigue since she returned from a 2-week class trip to Guatemala 2 days ago. During her time there, she had watery diarrhea, nausea, and lack of appetite for 3 days that resolved without treatment. She also took primaquine for malaria prophylaxis. Three weeks ago, she had a urinary tract infection that was treated with nitrofurantoin. Her immunizations are up-to-date. Her temperature is 37.1C 98.8F, pulse is 82min and blood pressure is 11074 mm Hg. Examination shows scleral icterus. There is no lymphadenopathy. The remainder of the examination shows no abnormalities. Laboratory studies show:Hemoglobin 12.1 gdLLeukocyte count 6400mm3Platelet count 234,000mm3Reticulocyte count 1.1Prothrombin time 12 sec INR1SerumBilirubinTotal 2.8 mgdLDirect 0.2 mgdLAlkaline phosphatase 43 ULAST 16 ULALT 17 ULγ-Glutamyltransferase 38 UL N 550Anti-HAV IgG positiveAnti-HBs positiveA peripheral blood smear shows no abnormalities. Which of the following is the most likely diagnosis?? A: Gilberts syndrome, B: Rotor syndrome, C: Dubin-Johnson syndrome, D: Hepatitis B infection, E: Crigler-Najjar syndromen,  <response>: This is a clinical case of a 16-year-old girl with yellowish discoloration of her eyes scleral icterus and fatigue after returning from a trip to Guatemala. She had diarrhea, nausea, and poor appetite while in Guatemala which resolved. She took primaquine for malaria prophylaxis and recently took nitrofurantoin for a UTI. Lab tests show elevated total bilirubin with normal direct bilirubin, normal liver enzymes, and positive anti-HAV IgG indicating past hepatitis A infection. The history of recent travel, diarrhea illness, and normal direct bilirubin with elevated total bilirubin point to Gilberts syndrome as the most likely diagnosis. The other choices can be ruled out based on the lab results and clinical history.A: Gilberts syndrome 