Step 1: Concept
Golden rice is a genetically modified variety of rice developed to biosynthesize a precursor of Vitamin A.
Step 2: Meaning
The endosperm (the part we eat) in normal rice does not produce pigments like carotenoids.
Step 3: Analysis
Genes from daffodils and bacteria were inserted into the rice genome to complete the pathway for beta-carotene production. Beta-carotene is a reddish-orange pigment.
Step 4: Conclusion
The accumulation of beta-carotene in the grain gives it a characteristic pale yellow or "golden" color.
Final Answer: (B)