Get some friends
get good grades
go do some sports
don't be pressured
get a girlfriend or boyfriend
The answer is A, hope this helps
One way in determining your fitness level is trying to do a Full Sprint Run and holding your breath for as long as you can. That way you can determine your cardiovascular capacity and lung capacity. On improving your fitness levels you should do swimming, jogging and of course a balanced diet.
its the third option, it describes it very accurately.