GRE Text Completion: Kaplan-GRE填空Kaplan - EM347I8609P25X6K_

W.C. Handy's self-conferred sobriquet, "The Father of the Blues," is widely ____________; although he composed and published the first written blues song, other musicians had been playing the blues for several years. A. professed B. deconstructed C. disputed D. proven E. contested F. demonstrated