A1
used to ask or talk about a choice between two or more things
Dictionary examples:
Which teacher: fun or boring? (0.0)
Which day: Monday or Friday? (0.0)
Which friend: loud or quiet? (0.0)
Which jacket do you prefer? (8.8)
Which time is better for you - 12:15 or 12:45? (9.2)
I don't know which one to choose. (9.7)