Final answer:
Beck Weathers is in a hypothermic and disoriented condition when Krakauer finds him. He is standing still due to the effects of hypothermia on his body and mind. Option a.
Step-by-step explanation:
When Jon Krakauer finds Beck Weathers on the way down, he is in a hypothermic and disoriented condition. He is just standing still because of his disorientation and the effects of hypothermia on his body and mind.
Hypothermia is a condition where the body loses heat faster than it can produce, leading to a drop in body temperature and impaired bodily functions. In severe cases, individuals may become confused, disoriented, and even lose consciousness.
So option ais the correct answer.