Richest source of Vitamin D -: (A) Milk, (B) Egg, (C) Halibut liver oil, (D) Butter
Answer is C. Halibut liver oil contain 500-10,000 Microban per 100g . egg contain - 1 . 25microgram, Milk 0.1micrigram per 100g.REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21ST EDITION. PAGE NO - 617