This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
The genetically engineered &;golden rice&; is rich in - 
Select and explain. 
A. b-carotene and magnesium, B. Folic acid and iron, C. b-carotene and iron, D. Folic acid and magnesium
C: b-carotene and iron
Answer: C: b-carotene and iron 
Explanation: <p> Golden rice: Variety of rice produced through genetic engineering to boisynthesize beta carotene, a precursor of vitamin A. It is indented to produce a foified food to be grown and consumed in areas with a shoage of dietary vitamin A. Golden rice differs from its parenteral strain by the addition of three beta carotene biosynthesis gene. It is rich in beta carotene and iron. </p>