The answer is C) All of the above are correct. Eating meat like deer can get iron in your diet because Deer eat plants. Plants have Iron in them. And a good amount. Eating green leafy vegetables is good because like I said, Leafy vegetables carry a good amount of Iron. Taking an Iron supplement is also good, because it's iron. A straigth way to get it into your system.
You center a lens to get better resolution and to open up the whole image
I believe teens definitely are most concerned about muscular strength. They are more worried about that because they want to protect themselves, impress others, sometimes kids just want to bulk up to not look so wimpy, etc.
I would have to say teens are less worried about flexibility because when you have mussels why worry about doing the splits or putting your leg up to your head. One thing will always distract you from the rest.