Answer: They brought Republican ideas to southern politics.
Step-by-step explanation:
Scalawags were white Southerners in the United States who supported the Republicans.ans supported the Reconstruction plan of the federal government after the civil war took place.
They wanted to make changes, and hence favored low taxes, and relief for debtors. The scalawags change government in the South by bringing Republican ideas to southern politics.
The correct option is B.