Critical infrastructure includes which of the following?

The term "critical infrastructure" encompasses essential systems and assets that are vital to the functioning of a society and its economy. It includes sectors that are crucial for public safety and security, such as energy, transportation, water supply, and communication systems.

Aviation security is indeed a significant component of critical infrastructure. It refers to the measures and protocols in place to ensure the safety and security of civil aviation operations, including airports and aircraft. This is essential for protecting against threats such as terrorism and other security risks that could disrupt air travel and impact national security.

While cybersecurity, public transportation, and telecommunications are also important components of national security and infrastructure, aviation security specifically addresses the unique safety considerations involved in air travel and the operations of airports, making it a focused area within the broader context of critical infrastructure. Each of these sectors plays a vital role, but aviation security stands out due to the unique risks associated with air travel and the extensive networks involved.