Shelley is 24 years old. Being an emerging adult, which of the following actions taken by her indicates a “revolving door” existence? a. Shelley decides to move in with her boyfriend to get to know him better. b. Shelley decides to change her educational direction and pursue a career in acting instead of literature. c. Shelley has changed three jobs in the last three months. d. Shelley keeps returning to her parents’ home when she is unable to pay the rent for her apartment.