To determine which option contains only complete flowers, we need to understand what constitutes a complete flower. A complete flower is one that has all four essential floral organs:
1. **Sepals** - These are the outermost parts of the flower, usually green, that protect the flower bud.
2. **Petals** - These are the colorful parts of the flower that attract pollinators.
3. **Stamens** - These are the male reproductive parts, consisting of an anther and a filament.
4. **Carpels (or Pistils)** - These are the female reproductive parts, consisting of the ovary, style, and stigma.
Now, let's analyze the options provided in the question:
1. **Mustard, Date Palm, and Cooked Beet** - Mustard is a complete flower, but Date Palm has unisexual flowers. Therefore, this option is incorrect.
2. **Hibiscus, Mustard, and Petunia** - All three of these flowers have all four floral organs (sepals, petals, stamens, and carpels). Thus, this option is correct.
3. **Mulberry, Coconut, and Castor** - Mulberry has unisexual flowers, and Coconut also has unisexual flowers. Therefore, this option is incorrect.
Based on the analysis, the option that contains only complete flowers is:
**Hibiscus, Mustard, and Petunia.**
### Step-by-Step Solution:
1. **Define a Complete Flower**: A complete flower has all four floral organs: sepals, petals, stamens, and carpels.
2. **Analyze Each Option**:
- **Option 1**: Mustard (complete), Date Palm (unisexual), Cooked Beet (not complete) - Incorrect.
- **Option 2**: Hibiscus (complete), Mustard (complete), Petunia (complete) - Correct.
- **Option 3**: Mulberry (unisexual), Coconut (unisexual), Castor (unisexual) - Incorrect.
3. **Conclusion**: The correct option is the one that contains Hibiscus, Mustard, and Petunia, as all are complete flowers.
