Answer:
B. State
Pharmacy practice laws are managed primarily at the state level in the United States. This is because the regulation of healthcare and professions is typically under the jurisdiction of state governments, not the federal government. Each state has its own Board of Pharmacy, which is responsible for regulating the practice of pharmacy within its borders. These boards establish rules and regulations regarding the licensing and practice of pharmacists, as well as the dispensing of medications and controlled substances. While there are some federal laws and regulations that impact pharmacy practice, such as the Controlled Substances Act, the majority of regulation occurs at the state level.