Although this nation has made great progress in protecting the personal freedoms of its citizens since apartheid ended here in 1994, many people still live in poverty and the nation is faced with crime, corruption, and an HIV/AIDS epidemic. Which country is being described by these statements?

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?