This is false, because endo, or taking in, means heat is being absorbed, not given off
I believe that the anwser wouldn be number 3
You will be able to recover from exercise when you are fit because your body can be more quick and agile and development more to the best of it's abilities it will be stronger and more effective to complete any activities . your body can use it's energy for more important matters instead of it turning into waste . because there will be nothing to hold your body back from using it's full potential.
It take about an average of about 8min and 20sec