Jazz is a musical style that originated in 20th century america. african american communities in the south developed jazz. rooted in african music traditions, it also had european influence. jazz music features improvisation, syncopation, and strong rhythm. in syncopation, the normal accent is shifted. usually, the normally unstressed beats are stressed. improvised music is usually composed on the spur of the moment. today, jazz music has many types and styles. jazz-roc, acid jazz, and fusion are just some examples of jazz styles. the further away we get from the beginnings of jazz, the harder it is to define the style of jazz. many musicians agree that "you know jazz when you hear it" (gautam 66). why is part of this paragraph in quotes? a. the author is using a source word for word. b. the author is not using a complete sentence. c. the author is paraphrasing from a source. d. the author is highlighting a dialogue.