How do I enter my 1099-B from Nadex into TurboTax? The only information given on the document is box 1a where it says "regulated options" and box 8 and 11

Please follow the steps below:

1. Click on Tax Home from Left Side Menu.
2. Click on Wages & Income from the main screen.
3. Scroll Down till you see the section titled "Investment Income". Within this section, click on Start next to "Contracts and Straddles"
4. Click on Yes on the page titled "Any Straddles or Section 1256 Contracts?".
5. Then make any applicable election or leave it blank and click on Continue. Then Select "Section 1256 Contracts marked to market" and then enter the information from Box 8 and Box 11.