Final answer:
Nunez chooses to leave the Valley of the Blind, trading safety for independence, symbolizing a difficult decision for personal fulfillment.
Step-by-step explanation:
The difficult choice that Nunez makes at the end of the story is to leave his life among the blind in the Valley of the Blind to regain his independence and sense of dignity, despite the fact that doing so means giving up potential safety and a settled life. This is presented as a moral struggle for Nunez who must decide between staying in a place where he feels humiliated and intolerable conditions or venturing back into the unknown.
The choice he faces is not easy as he has to choose between different types of freedom and confinement. In the passages provided, there are various moments where characters face tough decisions that concern their personal ethics, morality, and the impact of their actions on others, suggesting a common theme of challenging moral choices and the implications they carry.