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.
Explanation:
because to lead their happily with luxury. or at least to lead their life satisfactory. to get food all the day. to be respected by the society as a great person
Because thy might be allergic to certain types of medicine.
Chlorophyll allows plants to perform photosynthesis.