Explanation:
That everything that happens is for a reason and to trust in it, good things take time
The answer is D, because of the growth of the anti - slavery movement they wanted to secede from the Union.
The reason why General Longstreet urge Lee not continue the battle of Gettysburg is that Lee at that time is sick, weak and able to fight anymore, even if Lee ha a strong spirit in fighting but General Longstreet knows that he will not make it to the battle field.
