My company automatically sold some of my RSUs to cover taxes. TurboTax is asking "What type of investment did you sell?" Is "Stock (non-employee)" the correct option?

[DMarkM1]

No.  You would select the "Restricted Stock Unit" option for RSUs.  Indicate that you purchased the stock and use the value on the vesting date to calculate your acquisition cost.  There should be zero gain as the vesting and sale date should be the same.  Your employer has already included that value in box 2 on your form W2.