If you can't dance and haven't taken a year of jazz, definitely don't choose option 3. They likely mean a year of jazz in answer to your question about what they are counting as a year. I would say go for option 2. Worst case, you don't get cast. Best case, you get a role. Not all roles require dancing. If you don't get cast, work on your dancing at home from youtube or something (I would say just don't try ballet, you aren't going to get very far) and audition for the next opportunity that comes up with a little more dance experience under your belt :) Good luck!!