B, The Spanish and the Native Americans borrowed language, foods, and customs from each other is the correct answer :)
The correct option is A.
The United States Congress are given a number of expressed and implied powers but enforcing immigration laws is not one of them. The power given to the congress include: power to levy and collect taxes, power to regulate commerce between states, power to established and pay for armed forces, power to appropriate funds, etc.
Mali’s greatest ruler was Mansa Musa who was known to travel across Africa with hundreds of slaves who carried 4 pounds of gold while camels carried 300.