Individuals should participate in activities to improve cardiovascular fitness. A. twice a day B. three to five days a week C. two to three days a week D. seven days a week Please select the best answer from the choices provided. A B C D

The question is asking how often should Individuals participate in activities to improve cardiovascular fitness. The answer is that they should do it often, almost every day, and that shorter exercises are better than one longer exercise session. However, it's also good to have a day of rest. So, considering this, the best answer would be B. three to five days a week

It would have to be c or d