Which Statement Is True Regarding the Socioeconomic Gradient of Health

Multiple Choice

Which statement is true regarding the socioeconomic gradient of health?

A) The behavior of smoking is lowest among those who have low income and low educational levels.
B) The socioeconomic gradient of health has been found in populations around the world.
C) All persons who have a low socioeconomic status will develop particular health problems.
D) The socioeconomic gradient of health is universal.