Deep brain stimulation (DBS) is a technique developed to treat neurological disorders through direct brain electrostimulation and presently used to treat severe Parkinson's Disease patients that suffer from extreme motor dysfunction (tremors) caused by the condition. The importance when electrically dealing with the brain is size and material used to make the needed electrodes
Well, we can rule out diffusion and osmosis because these are passive processes, so we're left with A and C. I'd say A, because the energy is used in muscle contraction.
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
Usually if your pulse rate is thumping at a fast pace that means you have been running or your body has been actively moving in some type of way.
