Match List $I$ with List $II$.

List $I$	List $II$
$(a)$ Rectifier	$(i)$ Used either for stepping up or stepping down the $a.c.$ voltage
$(b)$ Stabilizer	$(ii)$ Used to convert $a.c.$ voltage into $d.c.$ voltage
$(c)$ Transformer	$(iii)$ Used to remove any ripple in the rectified output voltage
$(d)$ Filter	$(iv)$ Used for constant output voltage even when the input voltage or load current change

Choose the correct answer from the options given below:

• A
  $(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)$
• B
  $(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)$
• C
  $(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)$
• D
  $(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)$