Final answer:
Regulatory agencies are the part of the bureaucracy that oversees specific aspects of the economy. They are responsible for regulation and oversight of various economic sectors.
Step-by-step explanation:
The part of the bureaucracy that oversees a particular aspect of the economy is C. Regulatory Agencies. Regulatory agencies are a vital subset of independent agencies focused on overseeing and regulating specific sectors of the economy, such as banking, consumer protection, environmental standards, and communications. Examples of these agencies include the Securities and Exchange Commission (SEC), which regulates the stock market and the financial services industry, and the Environmental Protection Agency (EPA), which is charged with protecting human health and the environment by writing and enforcing regulations based on laws passed by Congress.