Why was the concept of a written constitution central to the formation of the u. s. constitution

In 1787, Congress authorized delegates to gather in Philadelphia and recommend changes to the existing charter of government for the 13 states, the Articles of Confederation, which many Americans believed had created a weak, ineffective central government.

Explanation:

what are the options so i can answer it

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years