If the heat is applied by open flame, the slow boil-off of alcohol vapor can burn off without exploding or igniting the leaf bath.
The answer is either the second one or the fourth one.
D.Releases insulin my good man
Explanation:
Trachea is another name for windpipe, which is the tube that connects your larynx to your primary bronchi, just before your lungs. You can't breathe without your trachea.