The Nursing Student Is Bathing a 73-Year-Old Native American Female

The nursing student is bathing a 73-year-old Native American female client.The student reports to the nurse that the client has what looks like cyanosis on her sacrum.The nurse goes with the student to assess the client but suspects that the cyanosis that the student sees is most likely:

A) Caused from the client laying on her back most of the morning
B) Caused by the bright sunlight in the room
C) Normal hyperpigmentation of mongolian spots
D) Blue dye that has bled off the cheap new gowns that the hospital has purchased