The sentence given below has been divided into five parts out of which the first part has been marked bold. There are five options which give the sequence of the rearranged parts. You must choose the option which gives the correct sequence of the parts. If the sentence requires no rearrangement or the correct sequence doesn't match any of the given sequences, select 'None of the above' as your answer.

The 156-year-old monument / is in need of immediate conservation (A)/ if we really want to preserve it (B)/ and major reconstruction (C)/ has been neglected by successive governments, and (D)