Critics Argue That Heritability Explanations for Ethnic Differences in IQ

Critics argue that heritability explanations for ethnic differences in IQ have a variety of flaws and weakness; these weaknesses do NOT include

A) between-groups comparisons are more likely to be the result of environmental influences.
B) within-groups comparisons are more likely to be the result of environmental influences.
C) the concept of race is more of a social concept then a biological one.
D) the differences in IQ scores for ethnic groups is more likely to be attributed to socioeconomic differences.