On november 25, 1863, union troops attacked the southern position on missionary ridge and defeated the confederate troops, driving them out of

The appropriate response is Chattanooga. Union troops assaulted the Southern position on Missionary Ridge and vanquished the Confederate troops driving them out of Chattanooga. Clash of Chickamauga - won by Braxton Bragg of the Confederates, who crushed Rosecrans of the Union, and drove him back North to Chattanooga.

Aor b but i'm going with b