Which agency is known as the FDA?

The correct choice is the Food and Drug Administration, commonly referred to as the FDA. This agency is a federal entity within the U.S. Department of Health and Human Services, responsible for protecting public health by ensuring the safety, efficacy, and security of drugs, biological products, and medical devices. Additionally, the FDA oversees the safety of the nation’s food supply, cosmetics, and products that emit radiation.

The vast responsibilities of the FDA include regulating the development of new pharmaceuticals, conducting research related to consumer safety, and enforcing laws that govern food and drug safety. The agency plays a crucial role in approving new drug applications and monitoring post-market safety.

The other options do not represent the FDA's official name or its responsibilities. For instance, the Food Development Authority and Food Distribution Agency do not exist as recognized agencies in this context, while the Federal Drug Administration is a misnomer, as the correct terminology places "Food" before "Drug." Understanding the role of the FDA is essential for those involved in research and development, particularly in ensuring compliance with regulations pertaining to animal research and the care of laboratory animals.