Which of the following statements below best characterizes american households?

a. young college graduates are moving back into their parents’ homes in unprecedented numbers, as they face bleak job prospects.

b. the number of americans living in multigenerational households has been declining for several decades.

c. the declining immigrant population has contributed to the decline in multigenerational households.

d. the number of grandparents living with and raising their grandchildren has declined steadily since the 1990s.

Danilo has been working for metropolitan taxi for three months. he expected that his job would be to drive around the city, pick up fares, and drop them off at their desired locations, but in his first few days on the job he realized that the job entails much more. he must keep his taxi cab clean and neat, and some days he will be stationed at the shop and go to people's houses to pick them up and bring them to the local airport. within a few months, he has learned that taxi drivers often express frustration with the people they call "civilians"—that is, non–taxi drivers, whose driving skills they complain about incessantly. in his first few months on the job, describes what danilo is undergoing.