which of the following is not considered to be an ethnic group?\na. african - american\nc. jewish\nb…

Brief Explanations:

Ethnic groups are defined by shared cultural, historical, and social characteristics. African - American, German, and Jewish groups have distinct cultural, historical, and social identities. Mongoloid is a term from outdated racial classification systems (like the now - discredited racial typologies based on physical features such as skin color, facial structure etc.), not an ethnic group. Ethnic groups are about culture and identity, while "Mongoloid" was a biological - race based categorization.

Answer:

D. Mongoloid