BPSC Prelims Exam-60-62rd While oranges do contain some Vitamin B₁ (Thiamine), they are not considered a primary or particularly rich source of this vitamin. Oranges are much more well-known and significant sources of Vitamin C and folate (another B vitamin). Let's check the other options: B) Vitamin D - Cod-liver oil is a very rich source of Vitamin D. This is a correct match. C) Vitamin E - Wheat germ oil is one of the richest natural sources of Vitamin E. This is a correct match. D) Vitamin K - Alfalfa (a plant) contains Vitamin K, particularly K₁. Green leafy vegetables in general are good sources of Vitamin K. This is a correct match.Compared to the strong association and high content in the other listed pairs, the pairing of Vitamin B₁ and Oranges is the least accurate as oranges are not a major source of B₁ relative to other foods like whole grains, meat (pork), nuts, and seeds.