c1 chooses/selects method/technique/approach c2=t1 from set/sequence of choices/options/alternatives c3 (complete set/sequence).
This word could be used for any kind of choice which involves choosing among a set of methods, techniques/approaches (see tadji) in order to do something. In a computer context, the x3 would be commonly known as “settings”, “options” or “preferences” in the English language, but this word is not limited to computer context alone.