Final answer:
Temperature monitoring is required for lyophilized tissues; it ensures the optimal conditions for the freeze-drying process.
Step-by-step explanation:
Temperature monitoring is required for lyophilized tissues, so the answer is d. All of the above. When tissues are lyophilized, they are freeze-dried, and the process of freeze-drying can be affected by temperature changes. Monitoring the temperature ensures that the lyophilization process is carried out under optimal conditions, preserving the integrity and quality of the tissues.