Question

which is a strength - training activity? sit - ups tennis hopscotch jump roping

Explanation:

Strength - training activities are those that help build muscle strength. Sit - ups primarily target the abdominal muscles and involve resistance (the weight of the body) to build strength. Tennis is a sport that involves more cardiovascular fitness and skill - based movements rather than pure strength training. Hopscotch is a game that mainly focuses on balance and coordination. Jump roping is a cardiovascular exercise that improves endurance and coordination, not mainly strength training. So sit - ups are a strength - training activity.

Answer:

A. sit - ups