Golden rice is a promising transgenic crop. When released for cultivation, it will help in :

Options

A. Alleviation of vitamin A deficiency
B. Pest resistance
C. Herbicide tolerance
D. Producing a petrol-like fuel from rice

Explanation

**Step-by-Step Solution:**

1. **Understanding Golden Rice**: Golden rice is a genetically modified crop that has been engineered to contain higher levels of beta-carotene, which is a precursor to vitamin A.

2. **Identifying the Purpose of Golden Rice**: The primary aim of developing golden rice is to combat vitamin A deficiency, particularly in regions where rice is a staple food and where diets lack sufficient vitamin A.

3. **Analyzing the Options**:
- **Option 1**: Elevation of vitamin A deficiency - This option is correct as golden rice is enriched with beta-carotene, which can help alleviate vitamin A deficiency.
- **Option 2**: Pest resistance - Golden rice is not specifically designed for pest resistance; hence this option is incorrect.
- **Option 3**: Herbicide tolerance - Golden rice does not provide herbicide tolerance; this option is also incorrect.
- **Option 4**: Producing a petrol-like fuel from rice - This is not a function of golden rice, making this option incorrect.

4. **Conclusion**: Based on the analysis, the correct answer is that golden rice will help in the elevation of vitamin A deficiency.

**Final Answer**: Golden rice is a promising transgenic crop that will help in the elevation of vitamin A deficiency.

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