If in two triangles `A B C` and `D E F` , `/_A=/_E ,\ \ /_B=/_F` , then which of the following is not true? `(B C)/(D F)=(A C)/(D E)` (b) `(A B)/(D E)=(B C)/(D F)` (c) `(A B)/(E F)=(A C)/(D E)` (d) `(B C)/(D F)=(A B)/(E F)`