A is the answer I believe
Probably go ask your doctor about how many shots you need to take, that's the probably the best way to avoiding bacterial contamination.
B. from an Eastern European tribe that invaded the Roman empire in the 5th century.
Answer:
The political problems after the Civil War were twofold. The first crisis involved how to abolish slavery. Second, the government agonized over how to bring the Confederacy back into the Union. The slavery issue was solved with the passage of the Reconstruction Amendments, but it would be a century before all African Americans completely enjoyed these rights.
So, I believe that there were two major problems at the time.