The constitutional convention was called to address the problems that the united states faced under the articles of confederation. which was not a problem that led to the convention?

a. many americans wanted to return to a monarchy.

b. the u. s. government was oppressing its citizens.

c. states were infringing on individual liberties.

d. the u. s. government could not raise money.

Constitutional Convention was called and set up for delegates to meet up because they could not pay taxes, The national government was very weak (which made states have full power and that's NOT a good thing).

Therefore, reading what I have just posted you would come to a conclusion that
Your answers will NOT be 

D.The U.S. government could not raise money. 
C.States were infringing on individual liberties.
B.The U.S. government was oppressing its citizens. This one here i'm not too sure of , but logically since states had full power they could have oppressed the citizens since nothing was in there way

Bottom line is I think the answer is ...

A.Many Americans wanted to return to a monarchy.

because americans were finally happy to have left that monarchy position and that they wanted to finally be independant and form there own fair government. 

4.a depression is the answer