Answer:
the answer is C, acquisition and expansion :)
Explanation:
A. True
Una músico es una persona que toca un instrumento
means
A musician is a person who plays an instrument
this is true
Castilian dialect, Spanish Castellano, a dialect of the Spanish language (q.v.), the basis of modern standard Spanish. Originally the local dialect of Cantabria in north central Spain, Castilian spread to Castile. After the merger of the kingdoms of Castile, Leon, and Aragon in the late 15th century, it became the standard language of all Spain and in the following centuries the language also of Spanish America.