There are five graphs shown below. The 1^st graph is that of the original curve y = f(x) and the other  four are various transformation of the original graph. Match each graph with the appropriate  equation. The graph of y = f(x) is

Column – I		Column – II
A.		P.	y = -f(x)
B.		Q.	y = f(x) – 1
C.		R.	y = f(x) + 1
D.		S.	y = f(x-1)