Emmett is 21 years old. he finished his undergraduate studies and found a job. after a few months, he quit and joined another firm with a different job description. in the same year, he switched apartments more than once, with minimal furniture. which of jeffrey arnett's five features of emerging adulthood is best depicted in the scenario? a. the preconventional level. b.the conventional level. c.the age of self-focus. d.the age of instability.