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.
A) Lubricate
the muscles used in the activity. This is because when doing stretches, it helps push blood into the muscles, which I ‘warms’ and preps the muscles for the workout.
Answer:
Positive feedback
Explanation:
Positive feedback is a process taking place in the organisms during which the output or the end product of the process causes the process or action o occur continuously or it stimulates the process to go on. A loop of action is formed during the positive feedback mechanism.
During labour, the production of oxytocin hormone plays an important role in the uterine contraction which allows the birth of the baby.
The production of oxytocin during labour is considered positive feedback as the oxytocin-induced contraction and the contraction causes more oxytocin to be released until the baby is born.
Thus, Positive feedback is the correct answer.