I believe it is B. Because during vigorous exercise, the heart rate and depth of breathing increases to supply muscles with more oxygen.
I think it is B but check with others before you answer that
This is true it's muscle tissue that are soft tissues that contains muscles that gives the ability to the muscles to contact.
A lot lower risk of getting serveral differnt types of cancer to insure she isnt caught cheating and punishment to follow if she was drug tested at work, or at school, to prevent her from going into heavy depression later in life
