Which of the following statements about the health of black Americans is LEAST accurate?

A) Immigrants from majority-black countries experience worse health than blacks born in the United States,and the longer they live in the U.S.the healthier they become.
B) Black Americans are roughly five times as likely to die from asthma than non-black Americans.
C) While diabetes is afflicting more and more Americans of all types,it has struck African Americans to a disproportionate degree.
D) Of all American groups,black Americans have the shortest life expectancies and are more than 30% more likely to die of cancer than white Americans.