In America, Why Is Spanish, Rather Than English, Continuously Spoken

In America, why is Spanish, rather than English, continuously spoken from generation to generation, with greater commitment than any other non-English speaking language?

A) Spanish is spoken worldwide much more commonly than English.
B) English is one of the most difficult languages to learn.
C) For many Spanish speakers, learning English violates the allegiance to their native countries.
D) There is a constant influx of new Hispanic immigrants into the U.S.