Answer: the correct answer is B. Compared with their Caucasian agemates, African-American children tend to have slightly higher self-esteem.
Explanation: A is not correct because Asian children have lower self-steem than U.S. children. C is not correct because boys and girls can have either high self-steem or low self- steem depending on their cultural backgrounds, families, etc. D. is not correct because self-esteem stability is low during childhood and early adolescence and becomes increasingly more stable in the future. B is correct, because African-American children tend to have more high self-steem perhaps because their ancestors were discriminated and they seem to educate their children about those terrible events or maybe is another factor.