PLEASE HELP WILL GIVE BRAINLIEST

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

The health care system in is referred to as a singleminus−payer health care system, and is a system in which the government provides national health insurance to all residents.

During the early period of spanish colonialism, the death of large numbers of native people led to what