Please help!

Which description below best fits what happened at Appomattox courthouse?
Question 2 options:


a major victory for the Union as it gives them control of the Mississippi River, and shows the Union can fight with few supplies


marked the end of wooden vessels and introduced more durable, metal-protected ships (ironclads)


Lee and Grant agree to end the war, and the Confederacy surrendered


led by William Tecumseh Sherman, as was meant to devastate the south and make them completely useless