Frog is

Options

A. Fully aquatic
B. Terrestrial
C. Both aquatic and terrestrial
D. Arboreal

Answer

To answer the question "Frog is," we need to analyze the options provided and determine the correct classification of frogs based on their habitat and lifestyle.

### Step-by-Step Solution:

1. **Understanding the Options**: The options provided are:
- A) Fully aquatic
- B) Terrestrial
- C) Both aquatic and terrestrial
- D) Arboreal

2. **Evaluating Option A (Fully Aquatic)**:
- Frogs are not fully aquatic as they do not spend their entire lives in water. They do live in water during their larval stage (tadpole) but transition to land as adults.
- **Conclusion**: This option is incorrect.

3. **Evaluating Option B (Terrestrial)**:
- While frogs do spend a significant amount of time on land, they begin their life cycle in water, where they lay eggs and undergo fertilization.
- **Conclusion**: This option is also incorrect.

4. **Evaluating Option C (Both Aquatic and Terrestrial)**:
- Frogs start their lives in water (as eggs and tadpoles) and then move onto land as adults. They are known to thrive in both environments throughout their life cycle.
- **Conclusion**: This option is correct.

5. **Evaluating Option D (Arboreal)**:
- Arboreal animals live primarily in trees. Frogs do not predominantly live in trees; instead, they are found in various habitats, including water and land.
- **Conclusion**: This option is incorrect.

### Final Answer:
Frogs are classified as **both aquatic and terrestrial** animals, making option C the correct answer. Frogs belong to a group known as amphibians, which reflects their dual life in water and on land.

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