A Patient Diagnosed with Depersonalization Disorder Tells the Nurse, "It's

A patient diagnosed with depersonalization disorder tells the nurse, "It's starting again. I feel as though I'm going to float away." The nurse should help the patient by:

A) encouraging meditation.
B) administering an anxiolytic medication.
C) helping the patient visualize a pleasant scene.
D) helping the patient focus on the here and now.