I wanna say <span>Censure </span>
Because the Native Americans were not introduced to European diseases on their own homeland.
Their immune systems were exposed to European Diseases that they never were in contact with before, which caused sickness. Without today's medicine, they were basically helpless and left to die from the exposed diseases.
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.
From the 1600's through the 1800's, the major reason for the western movement of settlers was to gain new lands with fertile soil for <span>agriculture.</span>
In addition to replacing the president if necessary, it's the duty of the vice president to "<span>d. preside over the Senate", although this role is relatively insignificant now, as the Vice President is rarely there.</span>