"a. Books became less expensive to purchase" and "b. Books became available to many people throughout Europe" and "<span>c. The literacy rate began to rise as interest in learning grew" would all be results of the invention of the Printing Press, since before this scribes were needed. </span>
According to the statement, successful as they were on rivers and lakes, steamboats were never able to cross the Atlantic is "True".
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What is Steamboats about?</h3>
The "Steamboats" was invented by Robert Fulton in 1807. Steamboats were never able to cross the Atlantic because they are mostly powered by coals.
Coals were only helpful for river cruising or travel because they may stop in between locations where they can easily re-supply.
Therefore, correct answer is True.
Learn more about Steamboats, refer to the link:
brainly.com/question/777070
C. The federal government refused to lend any assistance to the South
This was untrue because the federal government shelled out a lot of money to help the South with Reconstruction.
They mostly grew wheat, barley, oats, rye, and corn. because of this, they were basically known as the "Breadbasket". So I believe your answer would most likely be wheat.