Respuesta :
"Federal" refers to a system in which all of the states are independent in a sense, and power is shared between the state government and national government. Therefore, "D" is the correct answer.
A Federal government is the one that divides the power in different levels. The United States one divides it in a Central/National government and 50 States governments. Also, the Central and the States governments have different constitutions that establish the limit of their power and their duties. From the given choices, the best one that represents the meaning of a federal government is the option d, power split and shared between the central and state governments.