A. Fatigue hope this helps
I don't think you mean above the medula oblongata, i think you mean something else because the connection between the two hemispheres is connected by the Corpus Callosum which is above of the thalamus.
The only answer that i can make sense of what you've wrote is A Cerebellum but i don't think you are correct forming your question. Where did you find the question
Well depending on there age they shouldnt do it no matter what
Just do types of foods with high vitamin or things like that
♥ Averagely 1 - 1.5 seconds.
Hope this helps! :-)