HELP NEEDED

[maruti 0]

Hello all. I am a new member and I am married and about to file. In the I-485, it asks if I have ever filed for permanent residence in the US? I was married before my current marriage, to a lady who afterwards won the visa lottery. We both sent DS-230 to the NVC as it said to update if there was any change in status of the lottery winner who became my spouse shortly before winning the lottery. We were both sent a letter to go to the consulate. At that point, I decided to opt out. I attended the interview but was not interviewed neither did I pay the visa fees or anything. My passport was not touched or anything. My former spouse went in for the interview alone!!!! This was in 2001. We lost contact after she moved to the states and I had the marriage annulled in 2004. I was granted a B1 visa in 2010 and the interviewing officer indicated that I had attempted to migrate before? I explained to him that my former spouse won the lottery and we sent forms to NVS, but that I chose not to continue with the interview so I wasnt denied or anything like that. Just dropped out. I was given a visa and had travelled here 2ce after that. I met my wife on my last trip in 2011 and we got married in Feb 2012. My question is what do I put as answer to that question? Have i filed for permanent residence before in form I-485.

Thank you all for your help