Which of the following is a hospital in the southern division zone?

Kaiser San Jose Medical Center is recognized as a hospital located in the southern division zone. This designation is based on geographical categorizations often used within healthcare networks to manage resources and patient care effectively.

Good Samaritan Hospital and O'Connor Hospital, while significant medical facilities, are situated in different divisions or areas that do not fall into the southern zone according to the placement criteria. Similarly, Santa Clara Valley Medical Center is typically identified with a different region within the healthcare system's organizational framework. Therefore, Kaiser San Jose Medical Center stands out as the correct option for the southern division zone hospital.