What was the most pressing concern for the Congress that was made more challenging by the weaknesses of the Articles of Confederation? a. signing the Treaty of Paris
b. paying off the war debt
c. keeping the executive branch in check
d. establishing a postal system

b. paying off the war debt

Explanation:

The most pressing concern for the Congress that was made more challenging by the weaknesses of the Articles of Confederation was the inability to pay war debt.

This was because Congress could not enforce taxation which made the country unable to pay off their war debts.

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