Answer:
C. Stacking rings by size
Explanation:
Similar to a puzzle a young child would have to judge the sizes and gather and organize that information.
It's simple you just have to pick up you weight (W) and you height (H) but
Weight in kilo gram (kg)
Height in meters (m)

for an example a person that weight is 100 kg and height is 1.80m
Using this formula

Good oxygen usage during exercise, low resting heart rate, and good step- test results, are some of the GOOD things that come from regular exercise.
High blood pressure <em>(A)</em> is one of the BAD things that happen to people who DON't exercise regularly.
100% true. Unhealthy food has fat calories which cause weight gain. If the diet is a healthy one with no fat calories, you will not gain fat. Exercise is also key as it burns calories and reduces chances of various diseases that come with being overweight.