Which sentence from the excerpt best demonstrates the author’s reason for writing?

“Then Pau Amma thought a little and said, ‘I have made my choice. I will take all the gifts.’”
“Then the Eldest Magician made a Magic with the right hand, with all five fingers of his right hand, and lo and behold, Best Beloved, Pau Amma grew smaller and smaller and smaller, till at last there was only a little green crab swimming in the water alongside the canoe, crying in a very small voice, ‘Give me the scissors!’”
“And the girl-daughter picked him up on the palm of her little brown hand, and sat him in the bottom of the canoe and gave him her scissors, and he waved them in his little arms, and opened them and shut them and snapped them, and said, ‘I can eat nuts.’”
“‘I can breathe in the dry air, and I can find a safe Pusat Tasek under every stone.’”