The correct answer is C) separation anxiety disorder.
Five-year-old timothy is preoccupied with death since his grandfather passed away a year ago. He frequently asks his parents about death and dying. He clings to his parents and insists that they stay with him at all times, day and night. Timothy is most likely suffering from a separation anxiety disorder.
Under this condition, the children feel fear or nervous when is away from home or its parents. The child is very attached to its parents. They don't like to be away from them and can have symptoms of sickness like stomachaches or headaches. The average age when a child can suffer from this disorder is 6 years old.
The options of the question are A) body dysmorphic disorder, B) narcissist personality disorder, and D) attention deficit disorder.