Which compound sentence establishes an appropriate relationship between clauses?
A.The theatre students rehearsed daily for the play, but they were prepared for opening night.
B.The theatre students rehearsed daily for the play, yet they were prepared for opening night.
C.The theatre students rehearsed daily for the play; however, they were prepared for opening night.
D.The theatre students rehearsed daily for the play; therefore, they were prepared for opening night.