The answer is B) Department of the Treasury
The Department of Labor primarily focuses on occupational safety, wage and hour standards, unemployment insurance benefits, reemployment services, and some economic statistics. It does not issue the Federal Financial Management System Requirements (FFMSR).
The Department of the Treasury is responsible for managing the federal finances, collecting taxes, paying bills, managing currency, government accounts, and public debt. It also oversees the development and implementation of financial management policies and systems, including the Federal Financial Management System Requirements (FFMSR).
The Department of Homeland Security is focused on public security, dealing with anti-terrorism, border security, immigration and customs, cybersecurity, and disaster prevention and management. It does not handle the Federal Financial Management System Requirements (FFMSR).
The Department of Defense is responsible for military forces and ensuring national security. While it has its own financial management systems, it is not the agency that issues the Federal Financial Management System Requirements (FFMSR).
Therefore, the correct answer is the Department of the Treasury.