Answer:
B) Anticipatory Grief
Explanation:
As Khalid has found out that his friend Jason is terminally ill. This has made him feel sad and lonely at the thought of living life without his friend. Khalid's feelings best represent the concept of anticipatory grief which refers to the feeling of sadness and grief occurring before the actual happening of that loss. We become sad and emotional even before the actual happening of some incident. For example, when our dear friend is in hospital after a sever accident, then we start feeling this anticipatory grief that the chances are more that he will be dead soon so we feel more grief and sadness.