. A correlation exists between the inches of snowfall and the number of heart attacks. Which statement best compares and contrasts association and causation between the inches of snowfall and the number of heart attacks?

A.
There is causation but not association between the amount of snowfall and the number of heart attacks. The amount of snow that falls is not associated with heart attacks. However, the amount of snow can, in itself, cause a person to have a heart attack.

B.
There is an association but not causation between the amount of snowfall and the number of heart attacks. When it snows, people shovel the snow leading to heart attacks; so there is an association between amount of snowfall and number of heart attacks. However, the snow itself does not cause heart attacks, so there is no causation between amount of snowfall and the number of heart attacks.

C.
There is neither an association nor causation between the amount of snowfall and the number of heart attacks. The amount of snow that falls is not associated with heart attacks, and the amount of snow does not cause heart attacks.

D.
There is an association and causation between the amount of snowfall and the number of heart attacks. When it snows, people shovel the snow leading to heart attacks; so there is an association between amount of snowfall and number of heart attacks. Snow itself can also cause heart attacks.