True, as there are flu shots wtc to stop you from contracting flu
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.
The answer is b . It can help improve the poor posture responsible for back pain
Its classified as an additcive drug.
it crosses the blood-brain barrier.
there is a high risk of developing lung cancer.
Hope this helps!