Joseph gallo poured two glasses of wine from the same bottle but put a more expensive price tag on one glass than on the other. he let people test both and asked which they wanted; most wanted the more expensive glass, not knowing that both had come from the same bottle. this kind of experiment tells us

What is the difference between the kurds and the shia muslims? a the kurds are a religious group while the shia muslims are an ethnic group. b the kurds and the shia muslims are religious groups. c the kurds are an ethnic group and the shia muslims are a religious group. d the kurds and the shia muslims are ethnic groups.