PLS HEL Which of the following is the best summary of this map? (1 point) a Asia attracted the greatest migration of humans. b By 18,000 BCE, half of all humans migrated to the Americas. c In 18,000 BCE, all humans remained in Africa. d Humans had spread to each continent by 18,000 BCE.

After 20 minutes of waiting outside the baggage claim area for your friend to pick you up, you decide to go inside the airport terminal and phone her. standing a short distance from you is a kind-looking older woman. "would you mind watching my luggage so i can go make a quick phone call? " you ask politely. "i'd be happy to watch it for you," she replies, "my ride is not coming for another half-hour." when you return less than five minutes later, the old lady and your luggage (including your laptop) are gone. this example illustrates one of the problems associated with: ethnocentrism. the "feel good, do good" effect.the rule of reciprocity. an implicit personality theory.