Ok so, for the first question I might not have the options but i have to say that Latin Amercian music is characterized by diversity, language, African rhythm, Spanish decima, Syncopation, and Call and response. Now for the second question the answer is Aural transmission. We know this because folk music started through aural transmission before writing the melody and lyrics became a trend. A person would teach someone the whole music and this would be passed to another person. I hope this info has helped you a lot