Final answer:
The subject of this question is Law. It refers to a case where a person, who was the governor of California, was sued by prisoners claiming inadequate medical services.
Step-by-step explanation:
The subject of this question is Law. The question is referring to a situation where a person, who was the governor of California at the time, was sued by a class of California prisoners. The prisoners claimed that the person failed to provide them with adequate medical services.
This case falls under the field of Law because it involves a legal matter where the prisoners are seeking compensation for the alleged failure to provide adequate medical services. In this context, the case would likely revolve around issues related to prisoner's rights and the duty of the governor to ensure the provision of medical services.