78. Extraction of a mixture of toluene, phenol and phenylacetic acid under various conditions can be used to separate them.What are the correct compound X, Y and Z from the separation scheme.  
(A) (X)-toluene; (Y)-phenylacetic acid; (Z)-phenol
(B) (X)-toluene; (Y)-phenol; (Z)-phenylacetic acid
(C) (X)-phenylacetic acid; (Y)-toluene; (Z)-phenol
(D) (X)-phenol; (Y)-toluene; (Z)-phenylacetic acid
(E) (X)-phenylacetic acid; (Y)-phenol; (Z)-toluene