Comparisons of Asian-Americans and Euro-Americans in Their Performance on Raven's

Comparisons of Asian-Americans and Euro-Americans in their performance on Raven's Progressive Matrices reveals that

A) Asian-Americans tend to outperform Euro-Americans.
B) Euro-Americans do worse on the task if they are reciting the alphabet.
C) Euro-Americans consistently do better on the task if they are saying something than if they are silent.
D) Asian-Americans do better on the task if they are reciting the alphabet than if they are silent.
E) thinking and talking are largely unrelated for Euro-Americans.