System y. hope this helps!!
The fat - to - lean ratio being very high is the result of very limited movement wherein a lot of unused energy becomes stored as fat. So, from the given choices above, Peter should increase his participation in the cardiorespiratory activities. The answer to the question is letter C.
The answer for number 4 is number 1
1). The vaccine is not 100% effective.
2). There are still people who don't allow their children to be vaccinated. (They don't understand why this is child abuse.)
