Help Help Help Help! I will give brainliest!!~ Sally wants to invest her money. She is interested in owning a part of her favorite pizza company. Which should Sally buy? (4 points)

a). A bond
b). Stock
c). Money market
d). A savings account

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?