Code T indicates a distribution from a Roth IRA, not from a 401(k). If your father's first Roth IRA contribution was made for some year prior to 2019, the distribution is a qualified distribution, free of any tax. If your father's first Roth IRA contribution was for 2019 or later, any investment earnings in the distribution are taxable, with the amount taxable earnings being the amount in excess of your your father's basis in contributions an Roth conversions. If the question is being asked when you are entering this particular Form 1099-R, answer based on your knowledge of your father's Roth IRAs.
For the distribution reported with code 4, there is no reason for TurboTax to know when contributions were made and probably doesn't ask.
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