Answer: Option B
The relationship between Sky and Blue is that the sky is typically blue in color. Similarly, the relationship between Fish and Water is that fish typically live in water and swim. Therefore, the correct answer to the given question is Bird, Water.
Let's understand some relevant definitions and formulas related to the answer:

• Analogy: An analogy is a comparison between two things that are typically different but have some similarities.
• A is to B as C is to D: This is a format commonly used to present an analogy question, where A and B have a certain relationship, and we need to find a pair C and D that have a similar relationship.

Using the above definitions, we can see that the analogy presented in the question follows the format of "A is to B as C is to D". In this case, we have:

• A = Sky
• B = Blue
• C = Fish
• D = ?

To find the correct answer, we need to identify the relationship between A and B and then find a similar relationship between C and D. The relationship between Sky and Blue is that the sky is typically blue in color. The relationship between Fish and the correct answer (D) should have a similar relationship, such as living or moving in water.
Option A (Blue, Swim) has one correct word (Swim), but Blue doesn't have a relationship with Fish.Option C (Open, Hook) and Option D (Tree, Colour) have no clear relationship with Fish.Therefore, Option B (Bird, Water) is the correct answer because birds often live near or in water bodies and are known to swim, dive or wade in water for food.
In conclusion, the correct answer to the given question is Option B: Bird, Water, which has a similar relationship to Fish as Sky has to Blue.If you think the solution is wrong then please provide your own solution below in the comments section .