Which is the most precise difference in comparing Evelyn and Bismillah Khan?

Evelyn's journey is a redefinition of personal ability, Bismillah Khan's journey is the re-establishment of a cultural instrument

The governing comparison is between personal transformation and cultural transformation. Evelyn Glennie's story centres on redefining what a person with severe hearing difficulty can achieve in music. She developed a distinctive way of sensing sound and became an accomplished percussionist. Bismillah Khan's story centres on elevating the shehnai from a relatively restricted ceremonial association to a respected instrument of classical music through extraordinary riyaaz and performance. Thus option A states the most precise difference. B is false because their achievements were not limited to foreign stages. C reverses the instruments, and D ignores the important roles of guidance, discipline and practice in both careers.

This is a Class 9 English question. Chapter: The Sound of Music. Topic: Overcoming physical disabilities (Evelyn Glennie) and the life of Shehnai maestro Ustad Bismillah Khan.