Final answer:
On a Health Care Proxy form, it is important to include organ and/or tissue donation preferences. This form legally designates someone to make medical decisions on your behalf if you are incapacitated.
Step-by-step explanation:
Before appointing someone as your health care agent on the Health Care Proxy form, it is important to include your organ and/or tissue donation preferences (Option B). While financial instructions, emergency contact information, and medical history are all significant pieces of information, they are not typically part of the health care proxy form. The health care proxy is a legal document that appoints a specific person to make medical decisions for you if you are unable to speak for yourself. This document may be part of larger advance care planning, which can also include a living will or a Do Not Resuscitate (DNR) Order, conveying instructions for specific medical interventions and life-extending measures.