Answer:
Cardiorespiratory endurance
Explanation:
Without a multiple choice to choose from, this is the best answer I have for you.
Cardiorespiratory endurance strengthens your heart a ton. Simple vigerous exercises such as running, jumping jacks, etc. are very beneficial to your heart. Think about it, if you go on a half mile run everyday for a week, the next week your body has the endurance it needs to run the extra mile, (see what I did there?) Anyway, in my opinion Cardiorespiratory endurance would benefit the heart the most out of the Five Fitness Components.
Let me know if I helped! Have a lovely rest of your day.
If you starve yourself in a week, like by not eating anything, you will die in 3 days. Your body cannot survive without any food or water in a week! If you are thinking of doing it, don't!! If you want to loose weight try doing a healthy diet and exercise!
I hope this helped :)