Kera's Mother,father,and Sister Were All Killed at Once in a Car

Kera's mother,father,and sister were all killed at once in a car accident.Right now,she seems to walk through life in a daze.Her friends should be aware that Kera may experience

A) the generally expected pattern of grieving.
B) preoccupation with the memory of her family for months or years.
C) overwhelming feelings of sadness as the shock wears off.
D) All of these