It would be helpful is you added the answer choices, but she could increase the intensity/work with more vigour to increase her heart rate.
Answer:
B,C,D
Your answer is correct!
Physical, mental and social are 3 major areas of the Health Triangle!
(Hope this helped you out) :D
D disease reporting. Reporting diseases is extremely important because it could prevent a wide spread epidemic.
Those two are the muscular system and the excretory system because you use your muscles to push up and down and your excretory system produces the sweat you use while doing them
Cheese because it has a low glycemic index