Answer:
Yes
The reticulum is in our body
B.
waste
It would be B or C. I'm SURE it would be C though.
"A" means to cause air to enter and circulate freely in (a room, building, etc.), which fire NEEDS air in order to be alive, so that would be BAD. "D" is saying to store guns in locked cabinets... which doesn't really make sense.
Bloating, gas, diarrhea (not diseases but nagging symptoms)