Rhabditiform larva occurs in :

Options

A. Neries
B. Ascaris
C. Taenia
D. Fasciola

Answer

To solve the question "Rhabditiform larva occurs in:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which organism has Rhabditiform larvae. Rhabditiform larvae are a type of larval stage typically associated with certain nematodes.

2. **Review the Options**: The options provided in the question need to be evaluated to see which one is associated with Rhabditiform larvae.

3. **Evaluate Each Option**:
- **Option 1**: Trochophore larva - This is incorrect. Trochophore larvae are typically found in annelids and mollusks, not nematodes.
- **Option 2**: Ascaris - This is correct. Ascaris lumbricoides, a type of roundworm, has Rhabditiform larvae.
- **Option 3**: Tinea - This is incorrect. Tinea (tapeworms) has a larval form known as Cysticercus.
- **Option 4**: Fasciola - This is incorrect. Fasciola hepatica (liver fluke) has several larval stages, including Miracidium, but not Rhabditiform.

4. **Conclusion**: Based on the evaluation, the correct answer is **Option 2: Ascaris**, as it is the only option that correctly corresponds to the presence of Rhabditiform larvae.

### Final Answer:
The Rhabditiform larva occurs in **Ascaris**.

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