Which of the following is an example of low-intensity exercise?

Walking slowly is considered an example of low-intensity exercise because it typically involves a gentle pace that does not elevate the heart rate significantly. This form of exercise is accessible to a wide range of individuals, including those who may be new to physical activity or who have certain health considerations. Low-intensity exercise primarily engages the body's aerobic system without placing undue strain on the joints or cardiovascular system.

In contrast, the other activities listed—running, jump roping, and swimming laps—typically require a higher level of effort and exertion, resulting in higher heart rates and increased energy expenditure. These activities are generally classified as moderate to high-intensity exercises and are often part of a more vigorous fitness regimen aimed at building endurance, strength, or cardiovascular fitness.