Find out the one out w.r.t parasitic plants:

Options

A. Cuscuta
B. Viscum
C. Rafflesia
D. Pisum

Answer

To determine the odd one out with respect to parasitic plants, we need to analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the first option: Cascata**
- Cascata is a parasitic plant known as a total stem parasite. This means it relies entirely on its host for nutrients and support.

2. **Identify the second option: Viscum**
- Viscum is also a parasitic plant, but it is classified as a partial stem parasite. This indicates that while it does depend on a host, it may still perform some photosynthesis.

3. **Identify the third option: Rafflesia**
- Rafflesia is recognized as one of the most extreme parasitic plants. It is a total root parasite, meaning it completely depends on its host for survival and does not perform photosynthesis.

4. **Identify the fourth option: Pisum**
- Pisum, commonly known as pea, is not a parasitic plant. It is a typical flowering plant that can perform photosynthesis and does not rely on other plants for nutrients.

5. **Conclusion:**
- Among the options, Cascata, Viscum, and Rafflesia are all parasitic plants, while Pisum is not. Therefore, the odd one out with respect to parasitic plants is **Pisum**.

### Final Answer:
The odd one out with respect to parasitic plants is **Pisum**.

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