The correct answer is option 'D' - all of the above.

The law of reaction, also known as Newton's third law of motion, states that for every action, there is an equal and opposite reaction. This law applies to various aspects of our daily lives, including the examples listed in the options.

Dribbling in basketball:
- When a basketball player dribbles the ball, they exert a force on the ball by pushing it towards the ground.
- According to Newton's third law, the ball exerts an equal and opposite force on the player's hand or fingertips.
- This reaction force allows the player to control the ball and maintain its dribbling motion.

Walking:
- When we walk, we push against the ground with our feet.
- According to Newton's third law, the ground exerts an equal and opposite force on our feet.
- This reaction force propels us forward and allows us to walk.

Swimming:
- When a swimmer propels themselves forward by pushing against the water with their arms and legs, they exert a force on the water.
- According to Newton's third law, the water exerts an equal and opposite force on the swimmer's body.
- This reaction force enables the swimmer to move through the water.

In all three examples, the law of reaction is at play. The action forces are exerted by the players or swimmers, while the reaction forces are exerted by the basketball, ground, or water. These reaction forces are equal in magnitude and opposite in direction to the action forces, in accordance with Newton's third law of motion.

Overall, the examples of dribbling in basketball, walking, and swimming demonstrate the application of the law of reaction, highlighting the equal and opposite forces involved in various actions and movements.