Which of the following statements about urbanization is false?
a. while urbanization has increased worldwide, some countries are more urbanized than others. b. a little over half of the earth's total population currently lives in urban areas. c. people traditionally have moved to urban areas for opportunities and a better life. d. rural areas traditionally have been inhabited by wealthy people who do not need the benefits of a city.

Which of the following is an example of how the principle of beneficence can be applied to a study employing human subjects? providing detailed information about the study and obtaining the subject's consent to participate. ensuring that the selection of subjects includes people from all segments of the population. ensuring that persons with diminished autonomy are protected. determining that the study has a maximization of benefits and a minimization of risks.