The correct answer is:
D. The U.S. Supreme Court
Explanation:
The U.S. Supreme Court is the highest federal court in the United States as it is stated on Article III of the Constitution. The Supreme Court has final appellate jurisdiction, it ensures that all three branches of government act inside the boundaries of their power, it protects the Constitution, minorities, and civil rights. The Supreme Court has original jurisdiction over cases such as disputes between states, foreign cases and cases involving officials.
Because the case involves the state of Nebraska and the state of Texas, it must be heard in the U.S. Supreme Court.