Final answer:
The governance of EMS in the United States is primarily a state responsibility, as each state has control of its own EMS system, reflecting federalist principles of separate national and state functions.
Step-by-step explanation:
The question is asking about the governance of emergency medical services (EMS) in the United States. The correct statement about EMS in the United States is B) Each state has governmental control of its own EMS system, independent of the federal government. While the federal government, through agencies like the National Highway Transport and Safety Administration (NHTSA), provides guidance and sets national standards for various aspects of transportation and public safety, healthcare policy, including EMS, is largely under state jurisdiction. This reflects the federalist system of governance in the United States where powers are divided and shared between national and state governments. States are primarily responsible for public health and safety, and this extends to EMS systems that are regulated at the state (and sometimes local) level.