A Patient Accompanied by a Sibling Has Returned to the Hospital

A patient accompanied by a sibling has returned to the hospital because of a recurrence of bipolar disorder.The admitting nurse notes that the sibling seems disinterested in the admitting process.The nurse should act on the thought that the sibling:

A) may be quiet by nature.
B) is probably thankful for the admission.
C) may be feeling hurt, anger, or resentment.
D) may not fully understand the admission process.