Explanation:

- The Dolphin Kick is a swimming technique. It involves quick, simultaneous movements of the legs and feet underwater. This is often used in butterfly stroke and during underwater portions of starts and turns in other strokes.

- Correct Answer: Option 3 - Swimming

- In football, a "kick" is generally known as a basic action to move the ball, but the term "Dolphin Kick" is not associated with this sport.

- In rugby, kicks are used for passing and scoring, yet "Dolphin Kick" is not a known term within the sport.

- In cricket, kicking the ball is not a primary method of playing, and "Dolphin Kick" does not apply here.