Which statement from the text supports a positive action for the future of endangered languages?
A. The first major classification of Native American languages, by John Wesley Powell (1891), identified 58
language families,
B. Thirty-two are "severely endangered," or spoken primarily by older generations.
C. In recent years, we have seen a gradual change in attitudes towards bilingualism.
D. At the institutional level, there are increasingly active efforts to promote Native language education.