Im guessing walking because you walk between classes.
C. it improves the ability to make a diagnosis
Painful periods.
pain in the lower abdomen before and during menstruation.
cramps one or two weeks around menstruation.
heavy menstrual bleeding or bleeding between periods.
infertility.
pain following sexual intercourse.
discomfort with bowel movements.
Answer:
you breathe in, it fills your lungs, you breathe out
Explanation:
They don't want to spend more tax money on things that don't necessarily affect them. Hope this helps<span />