Question #N395

In the early 1900s, the term "jazz" was used to describe a variety of musical styles, but it became associated with a particular style of music that originated in New Orleans. During the 1920s, jazz music was often played in clubs and dance halls. By the 1930s, jazz music was a global phenomenon, and it has since influenced many other musical styles. Jazz musicians use improvisation—playing music spontaneously, without a written score. This creates a sense of excitement and energy that is unique to jazz music.

Which choice best completes the text so that it conforms to the conventions of Standard English?
A. Jazz music, it has since influenced many other musical styles.
B. Jazz music, which has since influenced many other musical styles.
C. Jazz music, that has since influenced many other musical styles.
D. Jazz music, has since influenced many other musical styles.

Correct Answer is: B

The comma and the relative pronoun "which" correctly combine the two clauses into a single sentence. The comma separates the two clauses, and "which" refers back to "Jazz music." The other choices create incorrect comma splices or use incorrect relative pronouns.