Final answer:
Harold is experiencing complicated grief.
Step-by-step explanation:
The true statement about Harold's grieving process is: c) Harold is experiencing complicated grief.
Harold's restlessness, sleep problems, and uncontrollable weeping indicate that he is experiencing difficulties in coping with the loss of his friend. Complicated grief is a more intense and prolonged form of grief that can result in severe emotional and psychological distress, affecting daily functioning. It is important for Harold to seek support from counseling or therapy to help him navigate through his grief.