Bongani, a 10 weeks old male infant, is brought by his mothe…

Bongani, a 10 weeks old male infant, is brought by his mother to your clinic with the main complaint of yellow discoloration of the eyes since he was 2 weeks old. He’s exclusively breastfed and tolerating feeds. On examination, he has jaundice, Bitot’s spots and hepatomegaly of 6cm. The most likely cause of the hepatomegaly is: