Final answer:
The states were expected to contribute funds based on land value, appoint representatives to Congress, and supply soldiers for defense under the Articles of Confederation, but often failed to meet these responsibilities. therefore, option D is correct
Step-by-step explanation:
The best summary of the state's responsibilities to the national government under the Articles of Confederation is that despite not having the power to impose taxes, the national government could request funds from the states, which often did not fulfil their obligations, leading to an underfunded government. The states did send representatives to Congress but providing soldiers was a complex issue, as the central government could declare war and request troops, but it depended on the states to supply soldiers, which they could choose not to do. Hence, the inability to raise taxes and the reliance on states for military support were significant weaknesses under the Articles.
Under the Articles, states were supposed to contribute to a common treasury based on land value, appoint representatives to the national Congress, and provide soldiers for the common defense in times of war; however, the fulfillment of these responsibilities was inconsistent, leaving the national government financially and militarily vulnerable.