Angiosperm to which the largest flower belong is

Options

A. total stem parasite
B. partial stem parasite
C. total root parasite
D. partial root parasite

Explanation

### Step-by-Step Solution:

1. **Understanding Angiosperms**:
- Angiosperms are flowering plants that produce seeds enclosed within a fruit. They are characterized by their flowers and are the most diverse group of plants.

2. **Identifying the Largest Flower**:
- Among all angiosperms, the flower known for being the largest is **Rafflesia**.

3. **Characteristics of Rafflesia**:
- The flower of Rafflesia can reach approximately **1 meter in diameter**.
- It is known for its foul odor, which resembles that of rotten eggs. This smell is a strategy to attract pollinators.

4. **Family and Structure**:
- Rafflesia belongs to the family **Rafflesiaceae**.
- An interesting fact about Rafflesia is that it does not have typical plant structures such as stems, leaves, or roots. Instead, it is a **holoparasite**, meaning it completely relies on a host plant for its nutrients.

5. **Host Plant**:
- Rafflesia is a parasite on vines of the genus **Tetrastigma**, which are part of the grapevine family (Vitaceae).

6. **Visible Structure**:
- The only part of Rafflesia that is visible outside the host plant is its **five-petaled flower**.

7. **Size Records**:
- Some species of Rafflesia, like Rafflesia arnoldii, can exceed **100 cm in diameter** and weigh up to **10 kg**.

8. **Comparison with Other Flowers**:
- It is important to differentiate between the largest flower and the tallest flower. The tallest flowering plant is **Amorphophallus**, which can reach heights of about **6 feet**.
- Additionally, the smallest flower is **Wolffia**, measuring approximately **0.1 cm** in diameter.

### Final Answer:
The angiosperm to which the largest flower belongs is **Rafflesia**.

---