The chart below describes how the governments of two countries share power:

Country A
Local and state government share power with the central government.
The central government has final authority.

Country B
Local and state governments share power with the central government.
The state governments have final authority.

What types of government do Country A and Country B have?
Country A: Confederation, Country B: Federation
Country A: Federation, Country B: Confederation
Country A: Parliamentary, Country B: Unitary
Country A: Unitary, Country B: Parliamentary