Having a corporate code of ethics that prohibits employees from accepting gifts

The correct answer is B, Economy.

Infrastructure is the basic structure used to support an entire Economy.

Infrastructure is the basic facilities and systems, that serve a country, city or area. It also includes the facilities and services, necessary for its Economy to function.

Infrastructure includes Roads, Buildings, Power supplies, sewerage, transportation, communication, etc.

When an infrastructure of a country or city or region is efficient, the economy of that country grows at a good pace.