I believe it is A. Because it’s talking about how the salt is a danger and letter A talks about the danger of it.
I have hated words and I have loved them, and I hope I have made them right.” ... pg. 528
"You want to know what I truly look like? I'll help you out. Find yourself a mirror while I continue." pg. 307
"Sometimes I imagined how everything looked above those clouds, knowing without question that the sun was blond, and the endless atmosphere was a giant blue eye." pg. 350
The correct answer is Biological fact