<em>A. Congress was denied power to regulate trade.</em>
Explanation:
The Articles of Confederation had many weaknesses, it did not give proper power to the national government, so they could not regulate trade, enforce laws, or tax citizens. Colonists were scared that if enough power got into the hands of the government, the same thing would happen with what happened with Great Britain. Although the national government had no judicial branch, would also be correct in this case, as the national government did not have enough power or resources to do so, the question states "mercantile laws", which have to do with trade. Congress did not have any power to regulate trade under the Articles of Confederation, as they hated how the British used to enforce laws on them about what they can and cannot trade, and who they can and cannot trade with.
In agriculture you don't need to build factories to process and manufacture goods. The only benefit I would say is it became easier, but didn't change much.
Johannes Gutenberg was a German blacksmith known for inventing the mechanical movable type printing press<span>. His </span>printing press<span> has been widely considered the most </span>important<span> invention of the modern era because it profoundly impacted the transmission of knowledge.
</span>Its immediate effect<span> was that it spread information quickly and accurately. This helped create a wider literate reading public.
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You didn't list options, but I'll suggest an item which famously occurred during Warren G. Harding's presidency:
<h2>The Teapot Dome Scandal</h2>
This was a scandal in which one of President Harding's cabinet members illegally leased oil reserves. President Harding was not directly implicated in the scandal, but was affected by it. After President Harding transferred supervision of the naval oil-reserve lands from the navy to the Department of the Interior in 1921, Secretary of the Interior Albert Bacon Fall secretly gave Harry Sinclair of the Mammoth Oil Company exclusive rights to the Teapot Dome reserves in Wyoming. He granted a similar deal to another oil company executive. The secret leases came under Congressional investigation. Congress directed President Harding to cancel the leases, and the Supreme Court ruled that Harding's transfer of authority to Interior Secretary Fall had been illegal. The whole affair took a toll on President Harding's health. He died in office in 1923.
