Yes it is correct "can't"
The theme that best established the conflict in this passage is:
Advances in technology can lead to devastation.
In a way the author tries to explain that even with our incredible technological advances and superior knowledge, the gods can have the possibility of destroying themselves with nuclear weapons.
I think number 2 that is what I believe it makes a lot of sense
During the harsh winter, Tom and Bessie take a fruitless journey to the lower valley in search of food. As they return to the lodge, Bessie becomes increasingly weak and can barely walk. Recognizing that she will likely die shortly, Tom attempts to gather food for her and comforts her with chants and songs. After reminiscing about their lives together, Bessie dies and Tom buries her next to his father. Singing and mourning her death, Tom returns alone to the lodge.
