In bryophyta, simplest sporophyte occur in :-

Options

A. Riccia
B. Marchantia
C. Funaria
D. Anthoceros

Answer

To determine where the simplest sporophyte occurs in bryophytes, we need to analyze the sporophyte structures of the given options: Rixia, Mercantia, Fanaria, and Anthoceros.

### Step-by-Step Solution:

1. **Understanding Sporophyte in Bryophytes**:
- Bryophytes are non-vascular plants, and their life cycle includes a sporophyte generation that is dependent on the gametophyte. The sporophyte can vary in complexity among different bryophyte species.

2. **Analyzing Each Option**:
- **Rixia**: In Rixia, the sporophyte is represented by a capsule only. This means it does not have additional structures like a foot or seta, making it the simplest form.
- **Mercantia**: The sporophyte in Mercantia is more complex, consisting of three parts: foot, seta, and capsule.
- **Fanaria**: Similar to Mercantia, the sporophyte in Fanaria is also differentiated into a foot, seta, and capsule, indicating a more complex structure.
- **Anthoceros**: In Anthoceros, the sporophyte is differentiated into a foot and a capsule, which is still more complex than that of Rixia.

3. **Conclusion**:
- Based on the analysis, Rixia has the simplest sporophyte structure as it consists only of a capsule. Therefore, the answer to the question is **Rixia**.

### Final Answer:
The simplest sporophyte in bryophyta occurs in **Rixia**.

---