I believe it's the last two. "makes the lungs able to fill more completely" and "helps the blood vessels dilate more easily" hope this helps, have an amazing day :)
I think are there ages they should no be thinking about being pregnant
Answer:
Was concerned because the potential for mouth to hand contamination
Explanation:
As one of the server does multiple tasks of wrapping the tableware, setting the napkins, opening the door as well as taking lunch breaks, hence he is at a high risk of carrying or spreading microorganisms with him. By multitasking and then eventually taking lunch in between he is at a high risk of hand to mouth infectious microorganisms transfer which can be fatal for him as well as other people.
