Please answer I have only 1 chance

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

60+ points answer in 4+ sentences] part a) which issue do you think was most important in the concord city election? part b) explain your choice

The most likely reason why an ancient greek might worship more than one god is that?