There is no reason TurboTax(TT) would be asking that question, in the Federal Section.
Some states have a Renter's Credit. As Critter -3 suggested, you don't qualify (since you don't pay rent), so you should not have entered that section of the state program.
How to get out of that section will depend on which state it is. Usually, it's on the screen titled "A few things before we wrap up your state taxes" or Other tax Situations at the Summary Screen.