A 33-year-old client was brought into the emergency room unconscious, and it is determined that surgery is needed. Informed consent must be obtained from his next of kin. The sequence in which the next of kin would be asked for the consent would be:

D Parent, spouse, sibling, adult child C Spouse, parent, sibling, adult child B Spouse, adult child, parent, sibling A Parent, spouse, adult child, sibling