The Song dynasty is accredited with improving the government employment by creating . A) a successful educational system B) a bureaucratic system within government employment C) a dictatorship that assigned official jobs to every member of society D) a government based on the principles of Confucianism Please select the best answer from the choices provided A B C D

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?