Final answer:
Keshia's problems may have developed using Erikson's psychosocial stages of development. In this theory, the stage for young adulthood focuses on forming close relationships and establishing a sense of identity and purpose.
Step-by-step explanation:
Keshia's problems may have developed using Erikson's psychosocial stages of development. In Erikson's theory, the stage for young adulthood is called intimacy versus isolation. During this stage, individuals seek to form close and meaningful relationships, both romantic and social. If Keshia has experienced difficulties in her marriage and is facing the possibility of job loss, it could indicate that she is struggling with establishing and maintaining healthy intimate relationships and a sense of identity and purpose in her adult life. These challenges may contribute to her depression, overeating, and chain smoking as coping mechanisms.