Explanation:

- The passage describes an elephant interacting with water, likely performing an action to cool itself or clean.

- Option 1: "Sprinkling" fits well, suggesting the elephant is gently tossing water over itself.

- Correct answer: Sprinkling - It aligns with the typical behavior of an elephant using its trunk to shower itself.

- Option 2: "Wetting" is less specific; it lacks the imagery of an active process and can suggest passivity.

- Option 3: "Raining" implies precipitation, which is not an action the elephant can perform on itself.

- Option 4: "Sparkling" is more about something shiny or twinkling, which doesn’t fit the context of applying water.