Hey need help -v- on my final exams

Which term refers to a group or community that forms the focal point of a study and consists of all the people considered for evaluation in the research? a. sample b. population c. variable d. mean

How can a person be self justified he or she is proceeding in legal ways

How did the mali empire come to an end? a. rulers lost control of gao. b. they were conquered by axum. c. ghana took over their territory. d. sundiata was captured by mansa musa brainliest!