一道句子改错题，music 和 his own 还是that of his own 平行呢？

fwj34

Bluegrass

musician Bill Monroe, whose repertory, views on musical collaboration, and vocal style were influential on generations of bluegrass artists, was also an inspiration to many musicians, that included Elvis Presley and Jerry Garcia, whose music differed significantly from his own.

(B) influenced generations of bluegrass artists, also inspired many musicians, including Elvis Presley and Jerry Garcia, whose music differed significantly from

(E) were an influence on generations of bluegrass artists, was also an inspiration to many musicians, including Elvis Presley and Jerry Garcia, whose music was significantly different from that of

答案是b，但我感觉后面是music做比较，不是应该是that of his own 吗？
求指教，谢谢！

uwants

his own (music)

fwj34

谢谢！
那the music of his own 有这样的说法吗？