The cardia (coronary artery risk development in adulthood) study began with over four thousand healthy 18- to 30-year-olds; most were reexamined 7 to 20 years later. the study found that

The CARDIA (Coronary Artery Risk Development in Adulthood) study began with over four thousand healthy 18- to 30-year-olds; most were reexamined 7 to 20 years later. The study found that those who were the first assessment were four times likely to have diabetes and high blood pressure in middle age.

Explanation:

The sedentary lifestyles are responsible for many heart attacks and  and coronary diseases.

4

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.