To solve the problem of finding the water image of the given image, follow these steps:

1. Understand that a water image is the reflection of an object over a horizontal axis, similar to how an image appears when reflected in water.
2. Examine the given image closely:
3. Now, look for the characteristics of each part of the image, especially focusing on how each part would look when inverted vertically.
4. Compare the given options to determine which one correctly represents the water image of the provided figure. Consider the vertical inversion and see which option aligns with this reflection:
5. Option B is identified as the correct choice as it accurately reflects the vertical inversion required for a water image.
6. 

In conclusion, the water image effectively mirrors the object vertically, and the correct option captures this reflection precisely.