A1
belonging to or relating to something that has already been mentioned
Dictionary examples:
The pen ran out of its ink. (0.0)
The banana lost its peel! (0.0)
The chair lost its leg. (0.0)
Their house has its own swimming pool. (27.1)
The dog hurt its paw. (27.5)
The company increased its profits. (27.8)
I prefer the second option - its advantages are simplicity and cheapness. (72.2)