Frog has

Options

A. tear glands
B. oil glands
C. columella auris
D. sweat glands

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks what specific structures or glands are present in frogs. We need to evaluate the options provided: tear glands, oil glands, columella aureus, and sweat glands.

2. **Analyzing Each Option**:
- **Tear Glands**: Frogs do not have tear glands like humans. They have moist skin that helps in respiration, which reduces the need for tear glands.
- **Oil Glands**: Frogs do not possess oil glands. These glands are found in humans to keep the skin moisturized, but frogs already have moist skin.
- **Columella Aureus**: This is a bone found in frogs that is crucial for hearing. It helps transfer sound vibrations to the inner ear.
- **Sweat Glands**: Frogs do not have sweat glands. Similar to oil glands, these are present in humans to regulate body temperature through sweating, which is unnecessary for frogs due to their moist skin.

3. **Identifying the Correct Answer**: Based on the analysis, the columella aureus is the only option that is present in frogs and plays a significant role in their ability to hear.

4. **Conclusion**: The correct answer to the question "Frog has" is **Columella Aureus**.