When is a property considered a rental property

There is a question in the rental income questionaire with a checkbox

"I converted this property from personal use to a rental in 2021"

I purchased a house in 2021 lived in it by myself for a month, in july I found a tenant to rent a room down stairs and in September I found another separate unrelated tenant for renting the room upstairs. During the entire 2021 which I owned the house I lived inside the house alongside the tenants. 

Should I check in this box or should I not?