Walking refers to the act of moving at a regular pace.

• A. Walking
• B. Running
• C. Jumping
• D. Swimming

Answer: (A)

Moving at a regular pace describes walking, which is a steady, moderate-speed form of locomotion where rhythm and control define the movement. The other options describe different actions: running is faster and often involves a flight phase where both feet leave the ground, jumping is a propulsion off the ground with airborne time, and swimming is moving through water using limbs. Because the statement defines walking by its regular pace, it best matches walking.