MrsBarton,72 Years Old,is Seen in Her Physician's Office 1 Year

Mrs.Barton,72 years old,is seen in her physician's office 1 year after the death of her husband.Since his death she has been ill with shingles,and has just been released from the hospital after recovering from pneumonia.She says to the nurse,"I don't know why I have been so sick lately; I have looked after myself and have enjoyed good health all my life." What does research indicate may be a reason for Mrs.Barton's recent illness?

A) Reduced T cell function will render some clients susceptible to illness.
B) There is no correlation between the recent loss and client illness.
C) Psychosocial stress does not impact physical health.
D) Adaptation resources in the elderly are not adequate to fight illness.