The answer is C. 19 to 26 the actual age people reach their physical peak is 26 which therefore is C as your answer.
Calcium is what you should look for to strength your bones, therefore leading to a better growth development.
The circulatory system is also known as the cardiovascular system. They both allow blood to circulate throughout the body, transporting nutrients, oxygen, and carbon dioxide.
I hope this helps! :)
