Answer:
Multiethnic family is the correct answer.
Explanation:
Multiethnic is defined by the Merriam-Webster Dictionary as something "made up of people of various ethnicities." It is important to point out that ethnicity refers to the fact of belonging to a social group with a common national or cultural tradition. In this case, different groups coexist in the same family: Mexican, American, and Irish, so it is considered a multiethnic family.
