Which Statement Does NOT Describe the Effect of SES on a Person's

Which statement does NOT describe the effect of SES on a person's life span?

A) Those with higher levels of education tend to live longer than those with less.
B) In the United States, the difference in life span between those with the lowest and the highest SES is about 30 years.
C) The impact of SES on life span is decreasing in the U.S.
D) Better income may result in better medical care.