In an Early Study by Irwin and His Colleagues (1987),which

In an early study by Irwin and his colleagues (1987) ,which of the following groups demonstrated the poorest immune function

A) wives whose husbands were in good health
B) wives whose husbands were being treated for lung cancer that had spread to other parts of the body
C) wives whose husbands had died from lung cancer up to six months previously
D) husbands whose wives were diagnosed with breast cancer
E) husbands whose wives were dying of breast cancer