Which of these musicians was responsible for pioneering multiple forms of jazz?

a) joe zawinul
b) john coltrane
c) miles davis
d) scott joplin

"John Coltrane was a saxophonist and composer. His early works were influenced by the bebop style but later his compositions gravitated toward free jazz. His free jazz style saxophone has been the influence of many jazz musicians, and he is known as one of the greatest saxophonists in music history. Coltrane invented the use of modes in jazz, and played as a sideman to many famous jazz masters, including Thelonious Monk and Miles Davis. Coltrane had a large and powerful tone with a higher than normal range and super-fast arpeggios. Coltrane's works used drone accompaniment that was influenced by Eastern music. His most famous work, Giant Steps, was a masterpiece of chord progression that followed unusual key changes." - Plato.

John Coltrane was not the one responsible of pioneering multiple forms of jazz. It was actually 'Joe Zawinul' who did.

"Joe Zawinul was a jazz keyboardist and cocreator of the jazz rock style, along with Miles Davis. He created a fusion style that combined jazz with rock and world music. He pioneered the use of electric piano and synthesizers in jazz. His playing style was full of odd melodic improvisations deriving from bebop, ethnic, and pop music combined with sparse rhythmic sections reminiscent of the big band era. He was part of the group Weather Report where he utilized vocoders and sampling synthesizers. Their most famous song was Birdland." - Plato

Sources: Treca Digital Academy

Music of the Twentieth Century - I

the second option.is correct