Concept:A unitary state has one central government that holds supreme power, and any regional divisions exist only for administrative convenience.
Explanation:In a unitary state, the central government controls all major functions of the state.
Local or regional units, like governorates, only exercise powers granted to them by the central government.
Egypt operates under this system, where the national government dominates and governorates have limited delegated authority.
By contrast, Nigeria, Ghana, and Canada practice federalism.
In federal states, power is constitutionally shared between a central government and regional governments, such as states or provinces.
Therefore, among the listed countries, Egypt is the unitary state.
Answer:Egypt