The passage mentions that “regardless of regular exercise,” sedentary activities can negatively impact one’s health. Choice (Physical activity alone may not be enough to reduce the risk of disease) is a clear restatement of that idea. Answers (Regular exercise will counteract the negative effects of being sedentary) and (Watching television while on a treadmill is considered sedentary time) are all false according to the information in the passage. Answer (Sitting still causes some types of heart disease and cancer) assumes that sitting still is a direct cause of disease, though the passage only suggests that long periods of sitting increase the risk of these diseases.