Which of the following of each administrative agency is confined solely to that which Congress grants?

Authority

Sanctions

Penalties

Evidence

The answer to the question is authority.

Administrative agencies are created by Congress to carry out specific responsibilities and functions. The authority of an administrative agency is solely derived from the powers and duties that are granted to it by Congress through legislation. This includes the power to make rules and regulations, enforce laws, conduct investigations, and impose penalties or sanctions for non-compliance. Without explicit authorization from Congress, an administrative agency cannot exercise any authority or take any action.

On the other hand, sanctions, penalties, and evidence are tools or mechanisms that administrative agencies may use within the scope of their granted authority. Sanctions and penalties can be imposed by an agency as a means of enforcing compliance with regulations or laws. Evidence, on the other hand, may be gathered and used by the agency to support its decisions or actions. While these elements are important in the administrative agency's operation, they are not confined solely to what Congress grants since agencies have some discretion in using them within the boundaries of their broad authority.