Should I select Yes or No on the QBI question for rental property regular rent reporting and/or sale reporting?

When I report rental properties, I got the following question:

 

Is this Qualified Business Income?    Yes ( )  No( )

 

I am reporting two rental properties in each of its own situation:

 

1. Rental property was sold in 2019: 

should I select Yes or No to the QBI question?

What's the difference by selecting Yes or No?

 

2. Rental property was Not sold in 2019 but rented out throughout 2019

should I select Yes or No to the QBI question?

What's the difference by selecting Yes or No?

 

Thanks.