While Caring for a Family, the Nurse Determines That First-Order

While caring for a family, the nurse determines that first-order changes have occurred when what observation is made?

A) The children are all in school, and the parent returns to work.
B) The daughter leaves home to attend college.
C) The son marries his long-time sweetheart and moves into his own home.
D) The grandmother who has been living in the household dies.