Police officer amy randall suspects that the driver of a car in front of her is driving under the influence of alcohol. she pulls the driver over and administers a field sobriety test. she asks the driver to stand on one leg so that she can evaluate the driver’s balance. this test is performed because the is one of the first structures in the brain to be affected by alcohol. a) cerebellumb) ponsc) cerebral cortexd) medulla

The correct answer is option a, that is, cerebellum.

Explanation:

Alcohol acts as a CNS depressant. When more amount of alcohol is taken and the levels of alcohol rise within the body, some sections of the brain get influenced and a reduction in the functioning is witnessed in that particular part.  

The region of the brain accountable for coordinating movement and also some kinds of learning seems to be sensitive specifically to the consumption of alcohol. Thus, cerebellum is the part of the brain, which gets most affected due to the consumption of alcohol. Therefore, test is performed to witness the balance of an individual, as cerebellum is the part of the brain responsible for appropriate posture and balance.  

"d.) carbon dioxide and hydrogen sulfide"