Answer:
C.
Explanation: The reason of the downfall of the Dutch Republic can include the costs of the competitition with England for sea hegemony, the attacks from France and the involvemenet of the Republic in different conflicts with other nations.
The participation of the Dutch Republic in all those wars eventually led to a stalemate of the once richest nation of the world, thus, its competitors like France, had a perfect opportunity to invade it.
White southerners who supported Republicans were "scalawags"
