Rectify the sentence by selecting the correct one from the options. She wore a dress which was elegant looking and attracted all attention at the party.

1. She wore a dress which was elegant looking and attracted all the attention at the party.
2. She wore a dress which was elegantly looking and attracted all attention at the party.
3. She wore a dress which was elegantly looking and attracted all the attention at the party.
4. She wore a dress which was elegant looking and attractive all attention at the party.