Final answer:
A maintenance staff member, among the options provided, refers to an electrician who fixes a broken outlet in a nursing home. Their role is to maintain and repair facilities and equipment, which is essential for safe and effective operations.
Step-by-step explanation:
The worker who is considered a maintenance staff member in the given options is c) An electrician who fixes a broken outlet in a nursing home. Maintenance staff are responsible for the repair, upkeep, and proper functioning of facilities and equipment. The mentioned electrician falls directly into this category as they ensure that the electrical systems in the nursing home are operating safely and effectively. The other listed professions, while critical to the operation of healthcare facilities, are not primarily in maintenance roles. For instance, a biomedical engineer develops devices for medical use, a laundry worker ensures the cleanliness of hospital linens, and a security guard is responsible for the safety and security of the facility and its occupants.