What two popular American styles developed in the 1890s? Bebop & Country Swing
Minimalism & Soul
Urban Blues & Symphonic Jazz
Ragtime & Tin Pan Alley

Ragtime & Tin Pan Alley

Explanation:

The early popular American styles of music included the "Tin Pan Alley" and the "Ragtime."

The "Tin Pan Alley" was an American style of music derived from a street name in New York City. There was a growing demand for music at this time and songwriters were strained to meet such demand.

On the other hand, the "Ragtime" was a distinctive music used for dancing. It was considered a "black music" of the Americans due to the similarity of style to the African's banjos. The development of this genre influenced the birth of jazz music.

it's d, robert k merton. in 1994 he was awarded the national medal of science for his contributions to the field and for having founded the sociology of science.