By how well he or she does the job
Explanation:
I swear yheooifhhyr. dhhrjirbbfjkdhhd
"Some stores have closed because of the snow." This action is happening in the past, so either "have" or "has" will be used. It is "have" in this case because "stores" is plural.
If you don't cite your sources, it is considered copyrighting.
Alcohol is known to increase fatigue.
I believe that the answer is B (Fatigue).