Match the columns:

Column-$I$	Column-$II$
$(a)$ Ligase	$(i)$ It removes nucleotides from $DNA$ ends.
$(b)$ Endonuclease	$(ii)$ Connects parts of $DNA$.
$(c)$ Exonuclease	$(iii)$ Removes phosphates from $DNA$.
$(d)$ $DNA$ Polymerase	$(iv)$ It produces sticky ends in $DNA$.
	$(v)$ Useful for repeated amplification.

• A
  $a-ii, b-iv, c-i, d-v$
• B
  $a-ii, b-i, c-iv, d-v$
• C
  $a-i, b-iv, c-ii, d-v$
• D
  $a-v, b-iv, c-i, d-ii$