Which two weaknesses of the Articles of Confederation were exposed by Shays’s Rebellion and influenced the writing of the United States Constitution?

(Select all that apply.)

The executive branch, under the Articles of Confederation, could not enforce legislation because there was no legislation.
The national government was subject to all of the states collectively and could not collect funds owed, leading to unfinanced veteran back pay.
The national government was not allowed to have a standing army.
The United States could not expand westward because of the country’s inability to generate land surveys.

I think its a and c?

Could be.

Double-check here: vittana.org/11-pros-and-cons-of-articles-of-confederation
Scroll down to “Cons”