This one I am pretty sure is B
<span>a hypothetical force formerly held to pervade all nature and to manifest itself in magnetism, mesmerism, chemical action, etc.</span>
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.
