The day neutral plant is

Options

A. Tobacco
B. Tomato
C. Wheat
D. Oat.

Answer

**Step-by-Step Solution:**

1. **Understanding Day Neutral Plants**:
- Day neutral plants are those that do not have a specific requirement for light or dark periods to initiate flowering. Their flowering is not influenced by the length of day or night.

2. **Identifying the Options**:
- The options provided are: tobacco, tomato, wheat, and oat.

3. **Analyzing Each Option**:
- **Tobacco**: This is classified as a short-day plant, meaning it requires longer periods of darkness to flower.
- **Tomato**: This is a day neutral plant, which means it can flower regardless of the length of day or night.
- **Wheat**: This is a long-day plant, which requires longer periods of light to initiate flowering.
- **Oat**: Similar to wheat, oat is also a long-day plant.

4. **Conclusion**:
- Among the given options, the only day neutral plant is **tomato**.

**Final Answer**: The day neutral plant is **tomato**.

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