1099r inheritance RMD

I received a 1099R for an IRA that I inherited from my Dad who passed in 2019.  I selected a lump sum total distribution (code 4) in 2019, which is reflected in box 7. IRA/SEP/SIMPLE is checked off.

 

In Turbotax its asking if this withdrawl was an RMD?  

 

I can then select either All was an RMD or Part was.

 

Later it asks if I received all, part, or not required to take an RMD

 

Im not sure how to respond.  Any help would be greatly appreciated