Many Americans wanted a new plan of government because the Articles of Confederation were far to "weak" to manage the nation successfully--as demonstrated by events like "Shays' Rebellion". the Articles were replaced with the "Constitution".
The answer is A, the Mississippi river
Answer:
Reapportionments normally occur following each decennial census, though the law that governs the total number of representatives and the method of apportionment to be carried into force at that time are enacted prior to the census.
Explanation:
Acted quickly to end strikes, using both the courts and federal troops
B, because when Japan attacked China, China unified to fight a common enemy.