A is correct! It is a true fact as well! Mark if correct!
Answer:
are u questioning or saying facts ?
Explanation:
hahahahhaha
Yes, as it can help out in sticky situations. For example, out hiking and a snake bites you, you will know how to limit the poisoning.
The brain stem which is composed of the Pons, The Medulla, and the Midbrain serve a very vital function... They control the functions that keep you alive; Heart Rate, Respiratory Rate, Breathing input and output, Blood pressure, as well a vasomotor functions. So taking this into account, an injury to the brain stem is extremely bad, as that can and will most definitely be very lethal.