Select the correct passive form of the given sentence.
Even though it happened years ago, the memory of the accident still haunts Mary.
1
Even though it happened years ago, Mary is still haunted.
2
Mary has been haunted by the memory of the accident, even though it happened years ago.
3
Even though it happened years ago, Mary is still haunted by the memory of the accident.
4
Mary is to be haunted by the memory of the accident, even though it happened years ago.