The first alternative is correct (A).
The Government is responsible for the control of resources that are nationalized. To ensure the protection of nationalized resources, the Government normally uses state-owned enterprises, that is, that are run by the State. These companies are responsible for managing the resources in a manner that secures the interests of the nation. Another way to manage nationalized resources is through the concession to the private sector, but as a supervision of competent regulatory bodies that guarantee the protection of national interests.
Typically, nationalization of resources occurs when resources are scarce or strategic, such as oil.
