Answer:
The available evidence suggests that immigration leads to more innovation, a better educated workforce, greater occupational specialization, better matching of skills with jobs, and higher overall economic productivity. Immigration also has a net positive effect on combined federal, state, and local budgets.
Explanation:
Blitzkrieg was the new type of welfare used by Germany against Poland and later France.
B. If a ruled doesn't have enough troops, he can hire mercenaries to fight for him.
