Which of the following lacks parapodia or setae?

Options

A. Pheretima
B. Hirudinaria
C. Respiration
D. All of these

Explanation

To determine which of the following options lacks parapodia or setae, we can analyze each option step by step:

1. **Understanding Parapodia and Setae**:
- Parapodia are lateral extensions found in some annelids that assist in locomotion.
- Setae are bristle-like structures that also aid in movement and are present in many annelids.

2. **Analyzing the Options**:
- **Option 1: Ferritima** (Earthworms)
- Ferritima refers to earthworms, which belong to the class Oligochaeta.
- Earthworms possess setae but lack parapodia. Therefore, this option does not fit the criteria of lacking both parapodia and setae.

- **Option 2: Hirudinaria** (Leeches)
- Hirudinaria refers to leeches, which belong to the class Hirudinea.
- Leeches do not have parapodia or setae. Instead, they have suckers for locomotion and feeding. This option fits the criteria of lacking both structures.

- **Option 3: Respiration**
- This option does not refer to a specific organism but rather to a biological process. It is not relevant to the question about parapodia or setae.

- **Option 4: All of these**
- Since we have already established that Ferritima has setae and that respiration is not an organism, this option cannot be correct.

3. **Conclusion**:
- Based on the analysis, the correct answer is **Hirudinaria** as it is the only option that lacks both parapodia and setae.

### Final Answer:
The correct option is **Hirudinaria**.