What is one of the most important facts when considering organ and tissue donation?

One of the most important facts when considering organ and tissue donation is that the organs must be functioning. For successful transplantation, it is essential that the donor's organs are viable and healthy, meaning they can perform their intended functions effectively. Non-functioning organs cannot be successfully transplanted and would not benefit the recipient, who relies on the transplant to restore their health. This principle is foundational to the transplant process, ensuring that the recipient receives the best possible chance for recovery and improved quality of life.

The other options provide irrelevant or inaccurate criteria for organ donation, as age alone does not determine eligibility, wealth is not a factor in the donation process, and a medical evaluation is always necessary to ascertain the suitability of organs for donation.