Retirement tax questions

I inherited my mother's Traditional and Roth IRAs. I began taking distributions from the traditional IRA in 2021, trying to space it out over the ten-year required time. I'm stuck on the question below. How should this be answered? It seems like the question is geared to a person who is taking distribution of their own IRA, not an inherited one. I am 60 years old. 

IRA.PNG