The answer I got was the loss is an inevitable part of life, and grief is a natural part of the healing process. The reasons for grief are many, such as the loss of a loved one, the loss of health, or the letting go of a long-held dream. Dealing with a significant loss can be one of the most difficult times in a person´s life.
Personal perspective? or first person view...
Regulatory function is one of the three main functions of blood. The regulatory functions of blood include regulating body temperature, body pH, and fluid balance of the body.
Hope this helps.
Your answer is C.........