Late onset hemorrhagic disease of newborn is characterized by all of the following features except –: (A) Usually occurs in cow–milk fed babies, (B) Onset occurs at 4–12 week of age, (C) Intracranial hemorrhage can occur, (D) Intramuscular vitamin K prophylaxis at birth has a protective role
Answer is A. "Haemorrhagic disease of new born is more common in breast fed infants because breast milk is a poor source of vitamin K"
What is haemorrhagic disease of new born

It is a haemorrhagic disease of new born characterized by bleeding from various sites due to a transient deficiency of vitamin K dependent factors (II, VII, IX & X). .
Breast milk is a poor source of vitamin K and haemorrhagic manifestation are more common in breast fed infants.

Classification. etiological presentation. prevention and incidence of various forms of haemorrhagic diseases of the  new born