I think the meaning of the quote is that artists that are very known have no country because they are either always on the move or they have no place to hide from the fame.
Answer:
It should be C, Earl Scruggs
Explanation:
Chris Thile joined in 1993
Tony rice joined in 1974
Earl Scruggs joined in 1945
Clarence White joined in 1965 I think
I'd tell you...but that would be treeson