Which other element may conduct training for property custodian equipment?

The correct option identifies MEMO, or the Medical Equipment Management Office, as an entity that may conduct training for property custodian equipment. This is because the Medical Equipment Management Office is responsible for the oversight, management, maintenance, and training related to medical equipment within a healthcare facility. They ensure that all personnel are adequately trained on the usage, maintenance, and safety protocols of the equipment, aligning with proper logistics and management practices.

The other entities mentioned, while integral to their specific functions, do not typically focus on the training for property custodians regarding medical equipment. Bioenvironmental Engineering primarily deals with health and safety issues related to the environment, Maintenance and Engineering Operations focus on the repair and upkeep of facilities and infrastructure, and while the Medical Equipment Management Office might imply a similar role, it's specifically the acronym MEMO that denotes the structured and formal approach to training custodians in the context of medical logistics.