Answer:
A: Only the federal government is powerful enough to completely end slavery.
Step-by-step explanation:
Based on Abraham Lincoln's historical stance on slavery, he would likely not agree with the statement that only state governments should be able to make decisions about slavery and that the federal government should not interfere. In fact, Lincoln believed that slavery was morally wrong and sought to end it entirely. He believed that the federal government had the power and responsibility to take action against slavery, as evidenced by his Emancipation Proclamation and other measures he took during his presidency. Therefore, his response to this statement would likely be option A: Only the federal government is powerful enough to completely end slavery.