This is a system by which the main institutions of a nation's government are arranged and kept in place it may be written down or it may be unwritten

i think it would be c.

hope i'm correct

explanation:

your answer will most likely be a.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.