Which of the following was a complication of instructing Native American language speakers using the English language?

A. A speaker fluent in two languages

B. The ability to read and write in one's Native language

C. An early success in bilingualism

D. A superficial or shallow understanding of the material

D

Explanation:

For this one, you can use process of elimination. A does not make sense because it is asking for a complication, and being bi-lingual wasn't a complication, rather a benefit. B doesn't make sense either because it is talking about Native American speakers, not reading or writing. C is not a complication whatsoever. D is the only logical answer because it is talking about speaking and also addressing a complication.