Question

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

Explanation:

Sit - ups target and strengthen abdominal and core muscles. Tennis is a racket sport focusing on hand - eye coordination and agility. Hopscotch is a children's game mainly for balance and coordination. Jump roping is a cardiovascular exercise.

Answer:

sit - ups