Answer:
C It emphasizes how dire their situation was and  therefore rationalizes the survivors'  cannibalism.
Explanation:
The story, 'The Crash' tells of how an airplane that was headed to Santiago, Chile from Montevideo, Uruguay crashed over a mountainous region that was covered with ice. The survivors sought for help or to be rescued by the searchers but that did not happen for more than ten days.
The excerpt which was quoted by the author from a book written by Nando Parrado presented the real situation of things as very severe and dire. They were left with nothing to eat except for their clothes, aluminum, ice, rock, and of course, the dead bodies. This is a rationalization or probable reason as to why most of them resorted to cannibalism.