A.
Travel across US federal boundaries is fluid and uncontrolled.
B.
Physical boundaries and armed protection are used at federal boundaries.
C.
Federal boundaries divide large cities into administrative districts.
D.
Federal boundaries divide states into groups of neighboring cities.
Please select the best answer from the choices provided.
A
B
C
1 answer
The best answer is A. Travel across US federal boundaries is fluid and uncontrolled.
In the United States, the movement across federal boundaries, such as state lines, is typically unrestricted and not subject to formal border control. Choices B, C, and D do not accurately describe the nature of federal boundaries.
