Which activity offers the most health benefits?
1. gardening
2. taking out the trash
3. walking down a flight of stairs
4. doing sit-ups and push-ups

The answer is "4. doing sit-ups and push-ups".

Push-ups and sit-ups are generally combined in circuit exercises and body-weight schedules when ordinary hardware isn't accessible. This makes them viable wellness choices when you are in the midst of a furlough or away on business.  

During push-ups and sit-ups, you connect with an assortment of muscles that incorporate the pectorals, deltoids, triceps and rectus abdominis. These are found in the chest, shoulders, arms and stomach. The conditioning impact from push-ups and sit-ups will be found in these zones as it were.

4) doing sit-ups and push-ups

Explanation:

Between the options to pick from, the one that requires more physical exigence and envolve a major number of muscles is doing sit-ups and push-ups.

This semi-intense physical activity has a determined difficulty that makes it a complete exercise for all the extremities, fomenting the muscles movement, circulatory system, and works as a cardiovascular session as well.

The pushups are great for the upper body muscles, involving the pectorals, shoulders, deltoids, between others, And sit-ups work for all the abdominal section, benefiting the muscles and the digestive organs as well.

exercising at a moderate intensity, and slowly increasing the duration.