Jorge is learning Spanish and English simultaneously in his home. Equally fluent in both, he is a balanced bilingual

In developing countries _______________________

a. most pregnant women now have access to modern medical technology b. giving birth is relatively free of risks because of modernization and globalization c. maternal mortality has decreased over the past 30 years d. rates of infant mortality are lower than in developed countries because of more holistic and natural approaches to childbirth

Which researcher believed that human behavior could be best understood in terms of how rewards and punishments exert an influence on people's actions?

a. Charles Darwin b. Mary Ainsworth c. Lev Vygotsky d. B. F. Skinner