In the Opening Vignette of Chapter 15, Why Was John

In the opening vignette of Chapter 15, why was John born in a homeless shelter?

A) His parents' house burned down and they had nowhere to go.
B) His mother was sexually abused by her uncle and ran away from home.
C) His mother was mentally retarded and was unable to care for herself.
D) His mother lost her job and she fell through the social service safety net.
E) His mother was addicted to meth and had lived in a shelter for over a year.