Answer: Anticipatory grieving
Explanation: When an event is being anticipated, it simply means an event that has been coming or one which an individual is expectant of. In the scenario above, Veronica who happens to be Nelson's wife was plagued with cancer which happens to be a sort of terminal disease. Due to the nature of the disease and prolonged length of her death, Nelson was already planning or predicting the death of Veronica as he has doubts over her survival. The emotional Preparedness which Nelson made over his wife's death is called anticipatory grieving.