Which best describes why the us wanted the louisiana territory
a) to halt french expansion in north america
b) to gain control of commerce on the mississippi river
c) to remove european rule in north america
d) to find and gain access to a transcontinental river route

The correct answer is B

Explanation:

I got it right on the test and it cleary said to gail control of commerce on the Missisippi River by taking authority over them in a way, if i'm not msitaken.

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.