Dr. Dias's research shows that the death of a spouse in old age is correlated with a decline in the surviving partner's physical health. Which of the following conclusions is supported by this study?

A) The death of a spouse causes a decline in the surviving partner's physical health.
B) The death of a spouse is related to a decline in the surviving partner's physical health.
C) A decline in a surviving partner's physical health can cause the death of a spouse.
D) A third variable, such as memory loss, causes a surviving partner's decline in physical health following the death of a spouse.

B