How many sets and repetitions are recommended when focusing on muscular strength?

3 sets of 4-6 repetitions

3 sets of 8-12 repetitions

4 sets of 4-6 repetitions

4 sets of 8-12 repetitions

If a social worker goes around boasting to clients and co workers, it may make the listener feel inferior, judged, maybe insignificant how do you feel when someone is boastful and self absorbed when providing you a professional service? why?