In the book hatchet chapter 8. what caused brian to cry until he was all cried out?

What caused Brian to cry until he was all cried out, was the feeling that he could no longer continue.

Explanation:

Brian ran into a porcupine that stuck his sharp needles in his leg.

After being paralyzed by the fear he felt, he tried to take them off but it became very painful. Once he felt so much pain, he began to cry inconsolably, with self-pity. He thought to himself that he could no longer do that, and that next time it could be worse.

When crying until he fell asleep, he realized that self-pity had achieved nothing.

i don't know and i don't care .