placing businesss under governmenttal control is called

a. central planning
b. nationalization
c. privatization
c

No

http://en.wikipedia.org/wiki/Privatization

Nationalization

Actually, placing businesses under governmental control is called nationalization, not privatization. Nationalization refers to the process of transferring private businesses or industries into public ownership and control by the government. This can occur for various reasons, such as economic planning, ensuring public welfare, or promoting national interests.

To confirm this answer, you can simply search for the term "placing businesses under governmental control" or "nationalization" in reliable sources such as textbooks, economic journals, or government publications. This will yield information about the process, its purposes, and examples of countries that have implemented nationalization in the past.