A seed is formed from

Options

A. Ovule
B. Embryo
C. Embryo sac
D. Ovary.

Answer

To answer the question "A seed is formed from," we need to analyze the components involved in seed formation after fertilization.

### Step-by-Step Solution:

1. **Understand the Components**:
- The main components involved in seed formation are the ovule, embryo, embryo sac, and ovary.

2. **Identify the Role of Each Component**:
- **Ovule**: The ovule is the structure that contains the female gamete. After fertilization, it develops into a seed.
- **Embryo**: The embryo is formed from the fertilized egg (zygote) and develops within the ovule.
- **Embryo Sac**: The embryo sac is the female gametophyte that contains the egg cell and develops into the embryo after fertilization.
- **Ovary**: The ovary is the part of the flower that contains the ovules. After fertilization, the ovary develops into the fruit.

3. **Determine Which Structure Forms the Seed**:
- After fertilization, the ovule is the structure that directly develops into the seed. Hence, the correct answer to the question is the ovule.

4. **Conclusion**:
- Therefore, the seed is formed from the ovule.

### Final Answer:
The seed is formed from the **ovule**.