Which category mentions progress up to 20-45 minutes?

• A. Cardiovascular disease guidelines - intensity
• B. Obesity guidelines - frequency
• C. Obesity guidelines - duration
• D. Cardiovascular guidelines - mode

Answer: (A)

The idea being tested is how progression is described for different exercise guidelines. For cardiovascular disease guidelines, progression is focused on increasing how hard you work during exercise (intensity) rather than simply extending the time spent exercising. As you safely raise intensity, you can work within a typical session duration that often falls in the 20–45 minute range. So the category that mentions progress up to 20–45 minutes is best understood through the lens of intensity because the guidance emphasizes gradually increasing effort within those sessions. The other categories—frequency (how often you exercise), duration (how long each session lasts), and mode (type of activity)—don’t specifically address the progression of effort within a session in the same way.