Final answer:
Ellen, who learned she has AIDS, is experiencing the bargaining stage according to the Küber-Ross model. This stage involves attempting to negotiate with a higher power to delay or alter the course of her illness.
Step-by-step explanation:
When Ellen learned that she had contracted the AIDS virus, she declared she would dedicate her life to the poor if God saved her. This is an example of the third stage of death, known as bargaining, according to Elizabeth Küber-Ross's five-stage model of grief. During the bargaining stage, individuals may try to negotiate a postponement of death by making promises or changing the way they live.
The correct order of stages in Küber-Ross's model, as proposed in her 1969 book, 'On Death and Dying', is: denial, anger, bargaining, depression, and acceptance. These stages may not occur in a specific order and not everyone will experience them all. However, bargaining is recognized as a distinct step where the realization of the inevitable prompts an attempt to strike a deal, often with a higher power, to secure more time or a different outcome.