posted by tj .
One of the arguments against inherited racial differences in intelligence is based on data that shows: (Points: 5)
a college education reduces the gap between the IQ scores of white and black races.
nutrition reduces the gap.
scores for black test takers improve as they mature.
white test takers plateau at about thirty-five-years of age.
Assuming the first question is A, I pick A.
There is good data on the effects of nutrition (and disease control).
However, college education is a big leveler: http://wupa.wustl.edu/record_archive/1997/11-06-97/7682.html