Largest fish is

Options

A. Whale
B. Whale Shark
C. Basking Shark
D. White Shark .

Answer

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for the largest fish among the given options: whale, whale shark, basking shark, and white shark.

2. **Analyze the Options**:
- **Whale**: While whales are large, they are not classified as fish; they are mammals.
- **Whale Shark**: This is a type of shark and is known to be the largest fish in the ocean.
- **Basking Shark**: This is also a large fish but is smaller than the whale shark.
- **White Shark (Great White Shark)**: This is a large predatory fish but is not the largest.

3. **Determine the Size of the Whale Shark**:
- The whale shark can grow up to approximately 18.8 meters (or about 61.7 feet) in length, making it the largest known fish.

4. **Conclusion**: Based on the analysis, the largest fish is the **whale shark** (option B).

### Final Answer:
The largest fish is the **whale shark**.

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