Adjusted Gross Income Roth Ira

Question: Which of the following reduce an individuals adjusted gross income, Traditional IRA or Roth IRA, both or none?

I know or at least am certain the Traditional IRA correct but I am not sure if the Roth would be.
Thank you to everyone.

Answer: only the traditional

Deficit Moves: Work Longer, Fund A Roth And Avoid Long-Term Bonds

Washington is dithering over the deficit, but you can’t afford to. Work longer, fund a Roth and steer clear of long-term bonds.

Contribution Limits for ROTH 401K/IRA or Traditional 401K/IRA