Omar's wife conceived a baby seven days ago and does not yet know she is pregnant. His wife's pregnancy is currently in the

In a study in which infants were exposed to a mobile, those who looked at a mobile that

remained stationary a. kept trying to make it move. b. turned their heads to avoid looking at it. c. did not learn to control its movements when given the opportunity. d. were more easily frustrated by difficult problems later. e. were not able to easily focus on its detailed features.

According to the chronology in Table 1-1, in which order did the following events occur?

a. The National Congress of Mothers was founded, the U.S. Children's Bureau was created, the Baby Boom began, the case of Brown v. Board of Education was heard b. The U.S. Children's Bureau was created, the National Congress of Mothers was founded, the Baby Boom began, the case of Brown v. Board of Education was heard c. The Baby Boom began, the case of Brown v. Board of Education was heard, The National Congress of Mothers was founded, the U.S. Children's Bureau was created, d. The National Congress of Mothers was founded, the Baby Boom began, the case of Brown v. Board of Education was heard, the U.S. Children's Bureau was created