It's done in stages. I do the TLA/Pith polls every month. First you create your question, in which it is a good idea to itemize the options and the procedure.
Describe the poll and the intent. Titles can be misleading and with this lot even if they're not, someone will argue that the thread title/poll title are not clear.
When you get to the point you're ready to submit, you simply click the radio button that asks if you wish to include a poll. You then choose the number of options (max. 20). It will post your new thread but you are then taken to the poll creation screen. You have to give the poll a title. You then fill in all the options you've given in your OP. At the bottom of the poll it asks you if you want to make it multiple choice, if you want voters choices visible (it doesn't tell you but that's visible to members only BEFORE they vote), and an expiry date for the poll.
Suggestion: We've had similar polls and if you limit it to simple broad terms you will get more argument than response. Are you "Fascist >> Monarchist >> Reactionary >> Conservative >> Libertarian >> Moderate >> Liberal >> Progressive >> Socialist >> Fringe Left Crazy would seem to cover a lot of territory, but I can bet that the first or second response is "well, I can't answer because I'm socially progressive but fiscally moderate to conservative".
You can manage some of that in your OP. "Look, Bob, we know the choices are limited but somewhere in those ten items you should be able to pick the one closest to you. If not, there's always the 11th choice."
The 11th choice is always (except in the language awards) Planet X. You can say Planet X Don't Know, Don't Care, Not Willing to Say. But make it Planet X because it's an old meme and people will complain and distract if you don't.