Answer:
push-ups
Step-by-step explanation:
The main physiological objectives of general warm-up are: to increase body temperature, muscle temperature and prepare the cardiovascular and pulmonary system for physical activity performance. We should raise body temperature, because when reaching the ideal temperature, physiological reactions important for motor performance occur in the appropriate proportions for a given activity. For this reason, we can say that, among the options given in the question, the one that best fits the concept of general warm-up is push-ups.
Other examples of exercises that can be used as a general warm-up include jumping rope, treadmill riding, and cycling on an exercise bike.