Answer:
How the Articles of Confederation failed and delegates met to create a new constitution. The major debates were over representation in Congress, the powers of the president, how to elect the president (Electoral College), slave trade, and a bill of rights.
Explanation:
Ma'am it appears to be D or 4
That would be the <span>precession of Mercury's perihelion.
In simpler terms this would mean that the Mercury's orbit, perihelion, did not behave as it should according to the Newton's laws. That is its rotation of the orbit, the precession, was strange as it was at its closest to the sun at different places as it slowly moves around the sun.
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The answer for your question is the Civil War A)