Jackson checks his mother's expression before venturing toward the sidewalk. This is an example of

Socioemotional selectivity theory argues that

A. older adults deliberately withdraw from peripheral relationships, while increasing contact with close friends and family members that offer enjoyable relationships. B. older adults deliberately withdraw from contact with close friends, and focus their relationships only on family members. C. deliberately increase new social relationships at the expense of their old relationships. D. older adults systematically expand their social network since they have more time to spare and are concerned about being lonely and ignored by others

Learning is a process that can take place only through

a. trial and error. b. positive and negative consequences. c. classical conditioning. d. experience.