Which of the Following Is Probably an Example of a Nonshared

Which of the following is probably an example of a nonshared environmental factor than might influence a child's development?

A) The genes that a child inherits from his parents
B) The fact that the child's mother was seriously ill during her pregnancy with him.
C) The fact that family lives in a poor, high-crime neighborhood
D) The fact that a family's primary language at home is Spanish.