Final answer:
The disbelief stage of grieving is typically highest immediately upon learning the news of the impending death.
Step-by-step explanation:
The disbelief stage of grieving, according to Kübler-Ross's five-stage model of grief, is typically highest immediately upon learning the news of the impending death.
This stage is characterized by denial and the person not wanting to believe that they are dying. Some common thoughts during this stage include 'I feel fine' or 'This is not really happening to me'.