Unobtrusive measure can reduce the problem(s) of group of answer choices invalid operationalization of concepts misinterpretation of the data unreliable measurements the researcher's impact on the phenomenon/event being studies

Ongoing civil wars western roman empire finally collapsed476 c.e. romulus, the last of theroman  emperors in  the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the  roman empire  had brought towestern  europe for 1000 years was no more.

Hope this will !

Answer d roundwormm good luckkk