Final answer:
In golf, when the left foot is slightly withdrawn while maintaining square knees, hips, and shoulders, the stance is known as a square stance, which aids in balanced and accurate swings. Hence, the third option is correct.
Step-by-step explanation:
In the context of a golf stance, when the left foot is withdrawn slightly from the line of flight, but the knees, hips, and shoulders remain square, this is known as a square stance. This positioning allows the golfer to maintain a strong, balanced posture, with the shoulders aligned parallel to the intended line of flight, which is ideal for achieving a straight shot.
It contrasts with an open stance, where the feet, hips, and shoulders are aligned left of the target line (for a right-handed golfer), or a closed stance, where they are aligned to the right. The square stance is a fundamental golfing position that ensures the golfer is balanced and ready to make a controlled and accurate swing.