Question

which of the following is true about cardio fitness? cardio activities are also known as aerobic activity. cardio activities are recommended on a daily basis. when performing cardio activities, your heart rate should be within your target heart rate zone. all of the above

Explanation:

Cardio activities are indeed aerobic activities. While they are beneficial, they are not necessarily recommended daily for everyone. When doing cardio, staying in the target - heart rate zone is important for effectiveness and safety. Since all the individual statements are correct in appropriate contexts, the overall correct option is that all are true.

Answer:

D. All of the above