Final answer:
All of the listed options can be ideal requirements of cadaver donors except for active malignancy.
Step-by-step explanation:
All of the listed options can be ideal requirements of cadaver donors except for Option 4: Active malignancy. Young age, negative serology for infectious diseases, and adequate renal function are generally preferred in cadaver donors to increase the chances of successful transplantations. However, active malignancy can pose significant risks to both the recipient and the success of the transplantation.