Which option accurately defines infrastructure?

To accurately define infrastructure, it encompasses a wide range of essential systems and facilities that support a society's economy and quality of life. The correct choice reflects that infrastructure includes the basic physical systems of a business, as these form the foundational framework that allows a business to operate effectively. This can include utilities, transportation, and communication systems.

Furthermore, infrastructure is not limited to just buildings and structures; it also involves the various networks that facilitate the movement of people and goods, known as transportation systems. Therefore, the correct answer recognizes that infrastructure is a broad term that integrates all these components, rather than isolating them into separate categories.

By acknowledging that all the options contribute to the comprehensive definition of infrastructure, it indicates the interconnectedness of these elements within the context of development and functionality in both public and private sectors.