Question

which activity provides a light level of activity?
walking the dog
playing doubles tennis
roller skating
golfing with a cart

Explanation:

Walking the dog is a relatively low - intensity activity. Playing doubles tennis involves running, hitting the ball, and quick movements, which is more active. Roller skating requires balance and movement that is more intense than a light - level activity. Golfing with a cart mainly involves some light swinging and walking (but less than walking the dog in terms of overall activity level if we consider the cart usage reducing movement).

Answer:

walking the dog