<span>the Marshall Court rulings that supported the sanctity of contracts and federal law over state law boost was </span>a national economy and a strong federal government Because its the most appropriate and best among above choices so correct option is A hope it helps
The Purpose was to Abolish (Get rid of) Slavery, after the civil war began the "Reconstruction Era" where many people wanted to Reconstruct America after the Civil War, Examples of this was the 13th Amendment (No more Slavery).