Which of the following is true about executive agencies?

The statement that executive agencies are typically headed by one individual appointed by the President is accurate. Executive agencies form part of the executive branch of government and are responsible for enforcing laws and implementing policies. The head of these agencies, often referred to as an administrator or director, is usually appointed by the President and, in many cases, requires confirmation by the Senate. This structure ensures a level of accountability to the President, who oversees the administrative functions of the government.

Regarding the other options: Executive agencies are not appointed by state legislatures, as that would pertain more to state administrative bodies rather than federal executive agencies. Additionally, while executive agencies have considerable authority to regulate and enforce laws within their designated areas, their powers are not unlimited; they are constrained by legislation, executive orders, and judicial review. Lastly, executive agencies do operate under federal laws, as they are created by statutes passed by Congress and are subject to both the Constitution and federal regulations.